You need to contact a client on the phone. You have estimated that you have a 70% chance of contacting the client on the first call. If you don't, you estimate that you have a 20% chance of contacting the client on a subsequent call in the next hour. Which of the following is true?
a. The probability that you will need at most two calls to contact the client is 0.90.
b. The probability that you will fail on call 1 but will succeed on call 2 is 0.06.
c. The probability that you will fail on call 1 but will succeed on call 2 is 0.50.
d. The probability that you will need at most two calls to contact the client is 0.80.
From the information provided, the correct answer is Option B - " The probability that you will fail on call 1 but will succeed on call 2 is 0.06." See further explanation below.
What is probability?Probability is an area of mathematics that deals with numerical representations of how probable an event is to occur or how likely a statement is to be true. The probability of an occurrence is a number between 0 and 1, where 0 denotes the event's impossibility and 1 represents certainty.
Hence,
P(E) = Number of favorable outcomes/Total Number of outcomes.
Step I
From the information provided, the probability of failing to contact the client on the first call can be computed as:
30% = 0.3
[Rationale is based on estimation. If there is an estimated 70% chance of success, then the chance of failure is 30% which is 0.3]
Step II
The probability of contacting the client on the second call is: 0.2 or 20% [Rationle is as per the given assumption.]
If the two scenarios above hold out because they are mutually exclusive events, the probability, therefore, that you will fial on call 1 and succeed on call two becomes:
0.3 x 0.2
= 0.06
Hence, Option B is the correct answer.
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What is wrong with the following JavaScript identifier? $the_value_1st_user_enters_for_a_name
An identifier cannot include underscores.
An identifier cannot include a reserved word (in this case, for).
An identifier cannot be more than 32 characters long.
Nothing is wrong with this identifier.
There is nothing wrong with the identifier that has been used in the JavaScript written in the question.
What is a JavaScript identifier?The term Java Script identifier is one that is used in Java script programming to talk about the characters that are in a capable that gave the ability of being able to identify variables as well as properties in functions.
These identifiers are known to be case sensitive. That is they are not to start with a digit and they are able to have unicodes such as the dollar sign.
What is a valid JavaScript Identifier?This is the term that is used to refer to an identifier in JavaScript that is known to include the underscore and is also made up of the dollar sign.
In the identifier that is presented in the question here, we can see that it is valid because it has the dollar sign and it also has the underscore in between the words.
Hence there is no issue with the identifier, Option D is correct as the solution.
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Instructions
Write a program that prompts the user to input an integer and then outputs both the individual digits of the number and the sum of the digits.
For example, it should output the individual digits of:
3456 as 3 4 5 6
8030 as 8 0 3 0
2345526 as 2 3 4 5 5 2 6
4000 as 4 0 0 0
-2345 as 2 3 4 5
My code:
#include
using namespace std;
int main(int argc, char* argv[]){
// Write your main here
int a=0,b[100]={0},n=0,sum=0;
cin>>a;
while(a>0)
{
b[n]=a%10;
a/=10;
n++;
}
for(int i=n; i>0; i--)
{
printf("%d ",b[i-1]);
sum+=b[i-1];
}
printf(" Sum: %d ",sum);
cin.get(); cin.get();
return 0;
}
Problem:
The input needs to be -2345
and the output should result in
Sum: 0
but it's wrong,
the result of this code is 50%
and I don't know why, pls help
A program that prompts the user to input an integer and then outputs both the individual digits of the number and the sum of the digits is given below:
The Program#include < iostream >
int main( int argc , char * argv [ ] )
{
int number , digit , sum = 0;
std : : cout < < " Enter number : " ;
std : : cin > > number ;
while ( number > 0 )
{
digit = number % 10;
std : : cout << digit << ' \ t ' ;
sum = sum + digit ;
number = number / 10 ;
}
std : : cout < < " Sum is : " < < sum < < std : : endl ;
return 0;
}
Your original code has the right ideas, but you will have to use the std to print out the output as used above and your output would be in individual numbers.
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What is one of the FIRST things people at an advertising agency do when they are planning a new ad campaign?
A.
find the right images and symbols to get the message across
B.
decide which consumers they will target
C.
pick a new product name and a new slogan or catchphrase
D.
select the right music for the ad campaign
Answer: decide which consumers they will target
cann anyone helppppp?
Answer:
#include <stdio.h>
int main(){
int limit;
int i;
printf("Enter the limit: ");
scanf("%d", &limit);
for (int i = 1; i < limit+1 ; i++){
for (int j = 1; j < i + 1; j++){
printf("%d", j);
}
printf("\n");
}
return 0;
}
Explanation:
Write a recursive function encode that takes two Strings as an input. The first String is the message
to be encoded and the second String is the key that will be used to encode the message. The function
should check if the key and message are of equal length. If they are not the function must return the
string “Key length mismatch!” Otherwise the function must get the ASCII value of each character in
the key string and check if it is divisible by 2 if it is then the respective character in the message will be
encoded by getting the ASCII value of that character and adding 5. If corresponding key character it is
not divisible by 2 then 3 is added instead.
A recursive function that encodes that takes two Strings as input. The first String is the message to be encoded and the second String is the key that will be used to encode the message is given below:
The Recursive Function in C++
// C++ program to decode a string recursively
// encoded as count followed substring
#include<bits/stdc++.h>
using namespace std;
// Returns decoded string for 'str'
string decode(string str)
{
stack<int> integerstack;
stack<char> stringstack;
string temp = "", result = "";
// Traversing the string
for (int i = 0; i < str.length(); i++)
{
int count = 0;
// If number, convert it into number
// and push it into integerstack.
if (str[i] >= '0' && str[i] <='9')
{
while (str[i] >= '0' && str[i] <= '9')
{
count = count * 10 + str[i] - '0';
i++;
}
i--;
integerstack.push(count);
}
// If closing bracket ']', pop element until
// '[' opening bracket is not found in the
// character stack.
else if (str[i] == ']')
{
temp = "";
count = 0;
if (! integerstack.empty())
{
count = integerstack.top();
integerstack.pop();
}
while (! stringstack.empty() && stringstack.top()!='[' )
{
temp = stringstack.top() + temp;
stringstack.pop();
}
if (! stringstack.empty() && stringstack.top() == '[')
stringstack.pop();
// Repeating the popped string 'temo' count
// number of times.
for (int j = 0; j < count; j++)
result = result + temp;
// Push it in the character stack.
for (int j = 0; j < result.length(); j++)
stringstack.push(result[j]);
result = "";
}
// If '[' opening bracket, push it into character stack.
else if (str[i] == '[')
{
if (str[i-1] >= '0' && str[i-1] <= '9')
stringstack.push(str[i]);
else
{
stringstack.push(str[i]);
integerstack.push(1);
}
}
else
stringstack.push(str[i]);
}
// Pop all the element, make a string and return.
while (! stringstack.empty())
{
result = stringstack.top() + result;
stringstack.pop();
}
return result;
}
// Driven Program
int main()
{
string str = "3[b2[ca]]";
cout << decode(str) << endl;
return 0;
}
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who can help me looping
Answer:
See attachment
Explanation:
I have provided all 3 programs in the attached text file.
All of these are complete programs so I could test them myself
Hope that works for you
Ask the user to input an integer. Print out the three numbers before it.
Sample Run-
Enter an integer: 4
3
2
1
Answer:
f=float(input("Enter an integer: "))
c=(f-1)
a=(c-1)
b=(a-1)
print(str(c))
print(str(a))
print(str(b))
Explanation:
This will print everything correctly, just copy and paste!
Questions about Python or more ProjectStem help? Just Send me a message!
Parallel computing is to distributed computing as multiple processors are to which of the following?
a - software
b- a tablet computer
c - multiple computers
d - single processor
Parallel computing is to distributed computing as multiple processors are to "single processor" (Option D).
What is the advantage of Parallel computing?
It is to be noted that Parallel computing on a single computer use many processors to execute work in parallel, whereas distributed parallel computing employs numerous computing devices to accomplish such tasks.
Parallel computing refers to the study, design, and execution of algorithms in order to solve a problem using many processors. The basic goal is to solve a problem quicker or larger issue in the same amount of time by sharing the work among many processors.
Parallel computing has the advantage of allowing computers to run code more effectively, saving time and money by sorting through "huge data" faster than ever before. Parallel programming can also handle more difficult issues by pooling resources.
One of the benefits of parallel processing is not autonomy. Parallel processing is a computer strategy in which discrete elements of a bigger difficult operation are divided and processed on many CPUs at the same time, saving processing time.
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Hello, I desperately need help in python with this question. I have tried everything: This is the question also:
4.24 LAB: Even/odd values in a list
Write a program that reads a list of integers, and outputs whether the list contains all even numbers, odd numbers, or neither. The input begins with an integer indicating the number of integers in the list. The first integer is not in the list.
Ex: If the input is:
5
2
4
6
8
10
the output is:
all even
Ex: If the input is:
5
1
-3
5
-7
9
the output is:
all odd
Ex: If the input is:
5
1
2
3
4
5
the output is:
not even or odd
Your program must define and call the following two functions. is_list_even() returns true if all integers in the list are even and false otherwise. is_list_odd() returns true if all integers in the list are odd and false otherwise.
def is_list_even(my_list)
def is_list_odd(my_list)
This is what I came up with:
def GetUserValues():
n = int(input())
numbers = []
for i in range(n):
numbers.append(int(input()))
return numbers
def IsListEven(myList):
for n in myList:
if n % 2 == 1:
return False
return True
def IsListOdd(myList):
for n in myList:
if n % 2 == 0:
return False
return True
if __name__ == '__main__':
userValues = GetUserValues()
if IsListEven(userValues):
print("all even")
elif IsListOdd(userValues):
print("all odd")
else:
print("not even or odd")
What Am I doing incorrectly and can someone show me?
Lily
Answer:
Read explanation and check out corrected code
Explanation:
Hi Lily
The formatting was destroyed when you copied pasted code onto the brainly question box.
When posting code, it's better to copy the code into a text editor(such as notepad), save it as a text file and upload this through the clip icon on the bottom right of the brainly toolbar (at the bottom)
Anyway, I copied your code and properly formatted it and it works fine
Since I cannot see the formatting, I am assuming that your return True statements are improperly indented. These statements should go with the for loop, not the if statement
Here is the wrong way to define
def IsListEven(myList):
for n in myList:
if n % 2 == 1:
return False
return True #this belongs to the if statement
If you write your code as follows, the return True goes with the if statement. That means it will return from the function as soon as it finds an even number without checking the rest of the list. For example if the list was [2, 4, 6, 8, 1], the function will return True on the first element in the list without going through all the elements
The correct way is:
def IsListEven(myList):
for n in myList:
if n % 2 == 1:
return False
return True # now belongs to the for loop
When posting code, it's better to copy the code into a text editor(such as notepad), save it as a text file and upload this through the clip icon on the bottom right of the brainly toolbar (at the bottom)
Why the code is copied?The copied your code and properly formatted it and it works fine. Since I cannot see the formatting, I am assuming that your return True statements are improperly indented. These statements should go with the for loop, not the if statement
Here is the wrong way to define
def IsListEven(myList):
for n in myList:
if n % 2 == 1:
return False
return True #this belongs to the if statement
If you write your code as follows, the return True goes with the if statement. That means it will return from the function as soon as it finds an even number without checking the rest of the list. For example if the list was [2, 4, 6, 8, 1], the function will return True on the first element in the list without going through all the elements
The correct way is:
def IsListEven(myList):
for n in myList:
if n % 2 == 1:
return False
return True # now belongs to the for loop
Therefore, When posting code, it's better to copy the code into a text editor(such as notepad), save it as a text file and upload this through the clip icon on the bottom right of the brainly toolbar (at the bottom)
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Which camera settings will cause the amount of light entering the lens to change?
Answer:
Aperture
Explanation:
Aperture controls the lens' diaphragm, which controls the amount of light traveling through the lens to the film plane.
case study on leading entrepreneur of goa
Answer:
goa is in india
Explanation:
Answer must be submitted in a python file (.py at the end of the file) or as python code snippet
Pretend you need to added 10% taxes to your total from a purchase
Write a program that answers this questions (What is your total?) using the input function
Take the value entered and add 10% to the total
Display the total
Answer:
purchase_cost = float(input("What is your purchase cost? "))
tax_rate = 10/100 #(10% = 10/100)
tax = purchase_cost * tax_rate
total_cost = purchase_cost + tax
print("Total Cost = ", total_cost)
Explanation:
transferring data from a local computer to a remote computer is referred to as what?
Answer: uploading
Explanation:
it’s referred as uploading when you move data from one to another
Someone who creates a new product to sell and takes on all of the risks
and responsibility
An entrepreneur
An accountant
A venture capitalist
A corporation
Answer: an entrepreneur
Explain keyboard and it’s layout and how to type with a keyboard
List the function of keyboard in typing
Describe process of use of keyboard for typing
Translate the following C program to Pep/9 assembly language.
#include
int myAge;
void putNext(int age) {
int nextYr;
nextYr = age + 1;
printf("Age: %d\n", age);
printf("Age next year: %d\n", nextYr);
}
int main () {
scanf("%d", &myAge);
putNext(myAge);
putNext(64);
return 0;
}
In this exercise we have to use the knowledge of computational language in C code to write a code that Translate the following C program to Pep/9 assembly language.
Writting the code:In C code:#include <stdio.h>
int myAge;
void putNext(int age) {
int nextYr;
nextYr = age + 1;
printf("Age: %d\n", age);
printf("Age next year: %d\n", nextYr);
}
int main () {
scanf("%d", &myAge);
putNext(myAge);
putNext(64);
return 0;
}
In Pep 9 CODE-myAge:
.zero 4
.LC0:
.string "Age: %d\n"
.LC1:
.string "Age next year: %d\n"
_Z7putNexti:
pushq %rbp
movq %rsp, %rbp
subq $32, %rsp
movl %edi, -20(%rbp)
movl -20(%rbp), %eax
addl $1, %eax
movl %eax, -4(%rbp)
movl -20(%rbp), %eax
movl %eax, %esi
movl $.LC0, %edi
movl $0, %eax
call printf
movl -4(%rbp), %eax
movl %eax, %esi
movl $.LC1, %edi
movl $0, %eax
call printf
nop
leave
ret
.LC2:
.string "%d"
main:
pushq %rbp
movq %rsp, %rbp
movl $myAge, %esi
movl $.LC2, %edi
movl $0, %eax
call scanf
movl myAge(%rip), %eax
movl %eax, %edi
call _Z7putNexti
movl $64, %edi
call _Z7putNexti
movl $0, %eax
popq %rbp
ret
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Question 11 Which one of the following is an infinite loop?
A. for i in range(-1):
print(i)
B. X=10
while x <= 10:
x=x-1
print (x)
C. for I in range (10):
print (I -10)
D. none of the above
Answer:
B.
x=10
while x <= 10:
x=x-1
Explanation:
Since x starts at 10 and keeps decreasing, its value will be always less than 10 so the loop will never end
100 POINTS! What are the essential parts of a mathematical function in spreadsheets? Select three options.
A. input parameters
B. variables
C. output value
D. expressions
E. name
Answer:
D.
Explanation:
It is to be noted that the essential parts of a mathematical function in spreadsheets are:
input parameters (Option A)variables (Option B)expressions (Option D).What is a mathematical function?A mathematical function is a rule that determines the value of a dependent variable based on the values of one or more relationships between the independent variable. A function can be represented in a variety of ways, including a table, a formula, or a graph.
When it comes to variables and spreadsheets, "it's garbage in garbage out." The computer has no way of knowing which variable is the right one to enter. This remains the solve prerogative of the Spreadsheet user, hence it's importance.
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use flash fill to fill range c4:c20 after typing LongKT in cell C4 and Han in cell C5
To use flash fill to fill range c4:c20 after typing LongKT in cell C4 and Han in cell C5, the process are:
1. Key in the needed information.
2. Then also key in three letters as well as click on enter for flash fill
How do you flash fill a column in Excel?In Excel will fill in your data automatically if you choose Data > as well as select Flash Fill.
When it detects a pattern, Flash Fill fills your data for you automatically. Flash Fill can be used, for instance, to split up first and last names from a single column or to combine first as well as the last names from two different columns.
Note that only Excel 2013 as well as later are the only versions that support Flash Fill.
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What are the differences
between scanning a 3-D object and photo-
graphing that same object with a camera?
Are there things you can control with a
camera that you cannot control with a
scanner?
The main difference between scanning a 3-D object and photographing that same object with a camera is that you can control the lighting when you scan an object, whereas you cannot control the lighting when you photograph an object. You can also control the distance between the object and the scanner, whereas you cannot control the distance between the object and the camera.
What is scanner?
Scanner is a disc space analysis and management utility for Microsoft Windows. It shows the disc space consumption of any drive or directory as a layered pie chart that can be browsed up and down the directory tree. When the mouse is moved over a pie, the application displays which directory the pie represents, how many files it contains, and how much disc space it takes up. A context menu allows users to open the directory in Windows Explorer, hide and unhide it from the diagram, and delete the pie from the disc permanently or via the Recycle Bin.
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Define what is rusty's wired series.what does it do to your life?
why do we need to have multiple image file format
Answer:
Explanation:
Each format represents a particular way of storing the data that makes up a file.
3) Which of the following would not impact the digital divide?
Expansion of free wifi connectivity in major cities
Legislation allowing communications companies to charge per website for access
O Less sharing of the work we produce
A decline in the price of internet access
A factor which would not impact the digital divide is: less sharing of the work we produce.
What is the digital divide?The digital divide simply refers to a terminology which is used to describe the gap (vacuum) which typically exist between the group of people (the information rich and the information poor) who have unrestricted access to digital technology and those who are unable to access it.
This ultimately implies that, a digital divide is mostly influenced by the fact that legislation allow communications firms to charge end users (customers) per website for access and some parents being fond of limiting the amount of time their children spend using computing devices or the Internet.
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ROCK = 0 PAPER = 1 SCISSORS = 2 # Read random seed to support testing (do not alter) and starting credits
seed = int(input())
# Set the seed for random
random.seed(int(seed))
# Type your code here.
In this exercise we have to use the knowledge of computational language in python to write a code that Read random seed to support testing (do not alter) and starting credits seed = int(input()).
Writting the code:import random
ROCK = 0
PAPER = 1
SCISSORS = 2
# Read random seed to support testing (do not alter) and starting credits
seed = int(input())
# Set the seed for random
random.seed(int(seed))
# Type your code here.
player_1 = input()
player_2 = input()
rounds = 0
count = 0
win_count1 = 0
win_count2 = 0
while True:
rounds = int(input())
if rounds >= 1:
break
else:
print("Rounds must be > 0")
print(player_1 + " vs " + player_2 + " for " + str(rounds) + " rounds")
while count < rounds:
p1 = random.randint(0, 2)
p2 = random.randint(0, 2)
if p1 == p2:
print("Tie")
elif p1 == ROCK:
if p2 == SCISSORS:
print(player_1 + " wins with rock")
win_count1 = win_count2 + 1
else:
print(player_2 + " wins with paper")
win_count2 = win_count2 + 1
count = count + 1
elif p1 == PAPER:
if p2 == ROCK:
print(player_1 + " wins with paper")
win_count1 = win_count1 + 1
else:
print(player_2 + " wins with scissors")
win_count2 = win_count2 + 1
count = count + 1
elif p1 == SCISSORS:
if p2 == PAPER:
print(player_1 + " wins with scissors")
win_count1 = win_count1 + 1
else:
print(player_2 + "wins with rock")
win_count2 = win_count2 + 1
count = count + 1
print(player_1 + " wins " + str(win_count1) + " and " + player_2 + " wins " + str(win_count2))
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3) Which of the following would not impact the digital divide?
Expansion of free wifi connectivity in major cities
O Legislation allowing communications companies to charge per website for access
O Less sharing of the work we produce
O A decline in the price of internet access
The statement which does not impact the digital divide is Less sharing of the work we produce. Thus the correct option is C.
What is the Digital divide?The term "digital divide" refers to the imbalance in populations and geographical locations between those who have and or without limited access to contemporary information and communications technology
Less sharing of work we produce does not impact the digital divide as Internet connectivity and wireless connectivity like Wi-Fi are frequently unavailable due to the digital divide.
Therefore, option C is appropriate.
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How is blockchain different from traditional database models?
Blockchain can lead to increased transparency and trust in data, ultimately driving more innovation, improved productivity, and quality.
Blockchain prohibits transparency by redefining the fundamental nature of business ecosystems and business flows.
Blockchain provides multiple versions of the data that can be kept by individual entities.
Blockchain increases innovation; however, it decreases productivity and quality.
I don't know this yet.
The difference between blockchain and traditional database models is that: C. Blockchain provides multiple versions of the data that can be kept by individual entities.
What is a database?A database simply refers to an organized and structured collection of data that're stored on a computer system as a backup and they're usually accessed electronically.
What is a blockchain?A blockchain can be defined as a digital and dynamic financial system that is designed and developed to be used in recording and maintaining transactions that are associated with or made through the use of a bitcoin, usually as a database.
In this context, we can infer and logically deduce that unlike the traditional database models, blockchain is designed and developed to provide multiple versions of financial transactions (data), and they can also be kept by individual business entities.
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Parallel Computing and Distributed Computing
Sequential computing has been great, but computer scientists need every speed and storage advantage they can get. Clever computer scientists have found even more efficient ways to use computer hardware for certain types of problems.
parallel Computing
Parallel computing is the use of a computer that performs multiple instructions at the same time. The programs used for parallel computing must be designed so they can be broken down into smaller independent parts that each processor can work on.
Parallel computing uses multiple computing cores. A computing core is one processor in the CPU. Parallel computers will have many different processors in their CPUs instead of just one.
Speedup in Parallel Computing
The advantage of a parallel computing solution over a sequential computing solution can be measured in speedup. Speedup is the amount of time used to perform a task with sequential computation divided by the amount of time used to perform the same task with parallel computation.
For example, imagine that you run a program on a sequential computer and it takes 10 minutes to complete. Next, you run the same program on a parallel computer and it takes 5 minutes to complete. You would divide the 10 by the 5 and come up with a speedup of 2. This means your program is two times faster on a parallel computer.
Distributed Computing
Many computer problems are so complex that they take an extremely long time to run on one computer. Distributed computing is the use of multiple computers to solve a problem. Distributed computing is like parallel computing but with many different computers; parallel computing is the use of one computer with many different processors.
QUESTION:
A program takes 10 minutes to compute sequentially and has a speedup of 2 on a parallel computer, meaning it takes how many minutes. ??
Answer:
5 minutes
Explanation:
It is there in the section on Speedup in Parallel Computing
For example, imagine that you run a program on a sequential computer and it takes 10 minutes to complete. Next, you run the same program on a parallel computer and it takes 5 minutes to complete. You would divide the 10 by the 5 and come up with a speedup of 2
computational thinking
Answer:
Computational Thinking (CP) is the mental skill to apply fundamental concepts and reasoning, derived from computing and computer science, to solve problems in all areas.
How do a write 19/19 as a whole number
Answer:
1.0
Explanation:
You divide 19 by 19 and get 1