Therefore , the solution to this problem is confidence interval 95% is given by Z =1.96.
Confidence Interval: What is it?In frequentist statistics, a confidence interval is the range of estimates for an unknown quantity. 95% is the most frequent confidence level used when calculating confidence intervals, however 90% and 99% are also occasionally used.
a)85 out of 100 paid at the pump using credit card
Thus,
p = proportion of customers who paid at the pump using credit card
= 85/100
= 0.850
Estimated Value of the population proportion = 0.850
b)
Given:
p' = 0.85 ....... Sample Proportion
n = 100 ....... Sample Size
For 95% Confidence interval
α = 0.05, α/2 = 0.025
From z tables of Excel function
Z = [tex]\frac{p'-p}{\sqrt{p(1-p)/n} }[/tex]
we find the z value
z = (0.025) = 1.96
We take the positive value of z
Therefore , the solution to this problem is confidence interval 95% is given by Z =1.96.
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5. What is the simplest way to write
3r + 2m - 2(x + y)? Briefly show or explain your
reasoning.
Answer:
2m+3r-2x-2y
Step-by-step explanation:
2m+3r=2m+3r
-2×x=-2x
-2×y=-2y
answer=2m+3r-2x-2y
just look at the picture
Answer:
What is the question??
Step-by-step explanation:
How are rectangles and parallelograms different?
a. rectangles have four right angles; parallelograms have two sets of congruent angles.
b. parallelograms have four congruent sides; rectangles have four sides that are not congruent.
c. parallelograms have four right angles; rectangles have two sets of congruent angles. rectangles
d. rectangles have four congruent sides; parallelograms have four sides that are not congruent.
Answer:
I think that the answer might be A
Answer:
A
Step-by-step explanation:
^^
Triangle ABC is congruent to triangle DEF. What side in triangle DEF is congruent to side AC?
Answer:
DF
Step-by-step explanation:
Answer:
DF
Step-by-step explanation:
AB is congruent to DE
BC is congruent to EF
AC is congruent to DF
Please help me no links im timed 1 question HELP ME!!!
Answer:
c. add 5 to each side
Step-by-step explanation:
Answer:
c. add 5 to each side
Step-by-step explanation:
that's the fastest way to get y=20
Plz help ASAP I will mark u branliest
Answer:
5.k=3
7.p=4
Step-by-step explanation:
5.7=2k+1
7=2k+1 subtract 1 on both sides
6=2k divide by 2 on both sides
k=3
7. 11=4p-5
11=4p-5 add 5 to both sides
16=4p divide by 4 on both sides
p=4
Answer:
5: k=3
7: p=4
Step-by-step explanation:
5: sub 1 from each side divde by 2
7: add 5 to both sides divide each side into 4
Cheryl painted her living room walls with two different colors. She painted part of the room yellow and another part green. If the surface area of the walls in her room is 720 ft2 and she painted 288 ft2 yellow, what percent of the room did she paint green?
Answer:
Total percent of the room did she paint green = 60%
Step-by-step explanation:
Given - Cheryl painted her living room walls with two different colors. She painted part of the room yellow and another part green. If the surface area of the walls in her room is 720 ft² and she painted 288 ft² yellow.
To find - What percent of the room did she paint green ?
Proof -
Given that,
The surface area of the walls in her room = 720 ft²
Total area painted in yellow color = 288 ft²
So,
Total area painted in green color would be = 720 - 288 = 432 ft²
Now,
Let the total percent green color painted = x
So,
720 × x% = 432
⇒[tex]720*\frac{x}{100} = 432[/tex]
⇒ x = [tex]\frac{432*100}{720}[/tex] = 60
∴ we get
Total percent of the room did she paint green = 60%
Neptune has a diameter of about 3 x 10^4 miles. Earth has a diameter
of about 8 x 10^3 miles.
Earth's diameter is about__
the size of Neptune's diameter.
2.67 times
37.5 times
0.267 times
26.7 times
Answer:
0.267 times
Step-by-step explanation:
(8×10³) ÷ (3×10⁴) = 0.2666666667
A school day starts at 08:50 hrs. and ends at 15:00 hrs. There are two breaks. One lasting 20 minutes and the other 1 hour. How much time is devoted to school activities?
Answer:
4:50 hrs to school activities
Step-by-step explanation:
the entire school day 6:10 hrs (with breaks)
so if we remove the breaks (which are 1:20hrs in total) we'll have 4:50hrs.
the equation would be: (the time the full day is)-(the total of breaks)= the school activity time.
so: 6:10hrs-1:20hrs= 4:50hrs
there's your answer. 4:50 hrs
*just remember i am working in the hrs format meaning 60 mins= 1hrs*
Harrison plays a game in which he uses a net to catch balls that are randomly launched from holes in the ground. The height of one ball after t seconds is represented by the function f(t) = –16t2 + 20t.
After how many seconds does the ball return to the ground? Round to the hundredths place as needed.
which number is greater than 2.6
Answer:
All numbers that are greater than 2.6 not including 2.6. So, 2.7, 2.8, 2.9, 3, etc
Question 5: Find the area of the following rectangle. Hint: multiply the binomials (x-3)(x+6). *
Answer:
B
Step-by-step explanation:
(x-3)(x+6)
x²+6x-3x-18
x²+3x-18
Help???? I can’t figure this out
Answer:
a. 1/Y
Step-by-step explanation:
sin=opposite/hypotenuse
sin t = 1/Y
Juan has grown 2 inches since last summer, but he's still not tall enough to get on the Crazy Carts ride. The minimum height for Crazy Carts is 42 inches. Let x represent how tall Juan was last summer. Which inequality describes the problem? 1. X + 2 ≥ 42 2. X + 2 > 2 3. X +2≤42 4. X+2<42
Answer:
x + 2 < 42
Step-by-step explanation:
Minimum height for Crazy cart = 42 inches
x = height last summer
Number if inches grown since last summer = 2
Height now = x + 2 is still not yet up to 42 inches because he is not yet tall enough to get on crazy carts ride.
Representing as an inequality :
x + 2 < 42
What is the name of the polynomial x2=25
Answer:
x = 5 or x = −5
Step-by-step explanation:
Let's solve your equation step-by-step.
x2 = 25
Step 1: Take square root.
x = ± √25
x = 5 or x = −5
There are 6 gallons in a tank that is 20% full. How many gallons are in a full tank? Use a double number line to show your work.
Answer: 30 gallons
Step-by-step explanation:
Let the number of gallons that are in a full tank be represented by x.
Since there are 6 gallons in a tank that is 20% full, this will be set up in an equation as:
20% × x = 6
20/100 × x = 6
0.2 × x = 6
0.2x = 6
x = 6/0.2
x = 30
There are 30 gallons in a full tank
can ya find the area of this triangle
[tex]\sf \:Formula \: to \: find \: the \: area \: of \: a\: triangle \: = \boxed{\boxed{\bf \frac{1}{2} \times b \times h}}[/tex]
___________________
[tex]\sf \: b = 6 \: in. \\ \sf \: h = 6 \: in.[/tex]
___________________
[tex]\sf \: Area \: \hookleftarrow \\ \sf \: = \frac{1}{2} \times b \times h \\ \sf \: = \frac{1}{2} \times 6 \times 6 \\ = \sf \frac{1}{\bcancel2} \times{ \bcancel36 } \\ \sf =\underline{\bf 18 \: in ^{2} .}[/tex]
i literally dont under this pls help
I don really understand as well but i will give what i say it would be.
I had to round it to the nearest thousand which would be 6,000, from there I divided it in half twice to that would be 4,000 then 2,000 so I would go for C.
Hope this helped!
Which similarity statements are true
I need 11 and 12 thanks!
Answer:
11. c > 5
12. option 1
Step-by-step explanation:
Guys please could you answer this question I'm unable to solve this assignment
ayudaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Answer:
Okay, hello to you too.
Answer:
Whats in the docx. I don't want to open it.
Step-by-step explanation:
Can someone help me with this. Will Mark brainliest.
Answer:
true
Step-by-step explanation:
a rhombus always has opposing parallel sides, qualifying it as a parallelogram
Answer:
true
Step-by-step explanation:
all rhombuses have opposite sides equal and parallel and opposite angles are congruent
1. Solve for the area of the figure below.
Solve for the area of the figure below Round answers to the nearest hundredth if needed
Answer:
39
Step-by-step explanation:
Solve for x . Enter the solutions from least to greatest.
x^2 – 12x + 27 = 0
lesser x=
greater x =
Answer:
Lesser x= -3. Greater x=3
Step-by-step explanation:
What is the exact volume of the cone?
A 80π ft³
B 4003π ft³
C 400π ft³
D 418710π ft³
arkadaşlar çanta yayınları deneme 10 daki çözümleri atarmısınız lütfen şık istemiyorum sadece çözümleri ACİL BAKARMISINIZ
Answer:
What you said doesnt make sense
Step-by-step explanation:
"
friends bag publications trial 10 could you throw the solutions please I don't want stylish, just look at the solutions urgently" Please say what you mean.
2. Lin and her friends went out for ice cream after school. The following questions came up during their trip. Select all the questions that are statistical questions.
What is the most popular ice cream flavor this week?
Do kids usually prefer a cup or a cone?
What does a group of 4 people typically spend on ice cream at this shop?
How many toppings are there to choose from?
How far are we from the ice cream shop?
Answer:1: The top pick among US adults is a classic: chocolate ice cream. Close to one in five (17%) Americans say this is their favorite flavor. Vanilla (15%) is also a popular choice, coming in ahead of strawberry (8%), mint chocolate chip (8%), butter pecan (8%), chocolate chip cookie dough (6%), and cookies n crème (6%).
2:More than 37 percent of respondents prefer to eat their ice cream in a cup or bowl, followed by 26 percent preferring a cone, 12 percent opting to eat ice cream out of the carton, 11 percent enjoying a sundae, 10 percent choosing a milkshake and 6 percent preferring an ice cream cookie sandwich.
heres 1 and 2
Step-by-step explanation:
Selected statistical questions:
What is the most popular ice cream flavor this week?Do kids usually prefer a cup or a cone?What does a group of 4 people typically spend on ice cream at this shop?How many toppings are there to choose from?What is sample space?The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive
The following traits can be used to recognize a statistical query:
It entails gathering or studying data.It cannot be replied to with a straightforward yes or no.It queries dispersion or variability within a population or group of data.It aims to derive broad inferences from data.It provides for a variety of potential solutions or results.Selected statistical questions:
What is the most popular ice cream flavor this week?Do kids usually prefer a cup or a cone?What does a group of 4 people typically spend on ice cream at this shop?How many toppings are there to choose from?Learn more about sample space here:
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61. Ariana has a cylinder-shaped above ground
pool with a diameter of 30 feet and a
height of 5 feet. If the water level can be
no more than three-fourths the height of
the pool, what is the maximum amount of
water that can be put in the pool?
A. 4,972.4 ft2
B. 10,602.8 ft?
C. 2,650.7 ft3
D. 3,534.3 ft2
help!!!!!!!!!!!
In a colored wheel shown below, Ms. Rios conducted an experiment and wrote down the results on how many times the colored wheel pointed to a certain color when she spins the wheel. What is the probability that she will spin to a color that is not red.