A normal distribution of 10 and a standard of 1. What is the probability of selecting a number that is at most 9?

Answers

Answer 1

Answer:

0.15866

Step-by-step explanation:

The term at most 9 means = less than or equal to 9

This represented as x ≤ 9

We solve using the z score formula

z = (x-μ)/σ, where

x is the raw score = ≤ 9

μ is the population mean = 10

σ is the population standard deviation = 1

z = 9 - 10/1

z = -1

Probability value from Z-Table:

P(x ≤ 9) = 0.15866

Therefore, the probability of selecting a number that is at most 9 is 0.15866


Related Questions

Alyssa attends football games at her school. At each football game, she buys a bottle of water for $0.75 and a candy bar for $0.90. Select all expressions that represent the amount of money, in dollars, Alyssa spends after attending 6 football games. Group of answer choices 6 + 0.75 + 0.90 6(0.75)(0.90) 6(0.75) + 6(0.90) (6 + 0.75)(6 + 0.90) 6(0.75 + 0.90)

Answers

Answer:

6(0.75)+6(0.90)

Step-by-step explanation:

can i get brainleist pls!? hope this helps :)

Explain how to solve this.

Answers

Answer:

c=74

Step-by-step explanation:

48+58=106

180-106=74

Answer:

D is 122         A is 58          B is 48       C is 74

Step-by-step explanation:

Find the missing angle measure. Type only the number. I need this urgently! Please! Thank you :)

Answers

Answer:

x=67°

Step-by-step explanation:

x and 113° make a straight angle or straight line, which is 180°, so

x+113°=180°

x=180°-113°=67°

The Answer Is M{x°}=67

have an amazing day <3

pls people my brother needs this ik its not for me but still pls.

Answers

Answer:

hey becca did u get yur account thing fixed, ily

Step-by-step explanation:

Find the volume of the rectangular prism that has a width of 3 cm, a length of 8cm, and a hight of 7cm

Answers

Answer:

V = 168 cm^3

Step-by-step explanation:

L length - 8cm

W width - 3 cm

H height - 7 cm    

V = w h l   (Right rectangular prism)

10th grade level LT1

Answers

Answer:

? = 3.

Hope this will help you.

Tam thinking of two numbers. The first number is 1 more
than twice the second number.
The sum of the two numbers is 25.
What are my two numbers?

Answers

Answer:

First number is x

Second number is y

Step-by-step explanation:

x = 2y + 1

x + y = 25

(2y + 1) + y = 25

3y = 24

y=24/3

y = 8

x = 2(8) + 1

x = 16+1

x=17

Hope this helps!!

A jar contains 4 blue marbles, 6 green marbles, and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is green? (In Percent)

Answers

Answer: 1/3 or 33%

Step-by-step explanation:

There are 20 total marbles, 6 are green. 20 divided by 6 is 3.333e3

Which expression is a factor of 9,2- 4r + 1? F3r-1 Gr-1 H 9r - 1 I J There are no real factors.​

Answers

Answer:

use photomath bestie

Please help! What's the difference between the two expressions? (3/7x+9)-(2/7x-3)

Answers

i believe the answer is: 12 + x/7

Identify the a, b, and c of the following quadratic: −3x2+2x−15

Answers

Answer:

a = -3

b = 2

c = -15

Step-by-step explanation:

What is the coefficient of the term of degree 1 in the polynomial?


2x^8 - 5x^2 + 3x+ 4

Answers

Answer:

3

Step-by-step explanation:

The term with a degree of 1 is 3x. The coefficient of that term is 3.

What is her average rate of change, in miles per hour, during the interval of 0.75 to 1.00

Answers

Answer:

2

Step-by-step explanation:

im need more help besties

I’m so d*mb lol

anyways giving brainliest

:)

Answers

Well , i took a while to understand the question , lol . I guess the answer is. 7 students

Answer: 1

Step-by-step explanation: i might be wrong most likely i am because im dmb to

Help please! No links!

For the following box plot, determine whether the given numbers would be considered outliers.
(Use the "IQR X 1.5" method.)

A. A height of 61 in.

B. A height of 69 in.

C. A height of 74 in.

D. None of these would be considered outliers.​

Answers

Answer:

D option is your answer bro

PLEASE HELP ME

GIVING BRAINLIEST

Answers

Answer:24

Step-by-step explanation:

PLS HELP NOBODY WILL HELP ME JUST SPAM ANSWERS I WANNA CRY JUST PLS ANYONE? ILL DEFINETLY GIVE BRAINLIEST : (

Answers

Just think about this.  35 + ( 20 * y ) I'm not really sure but this is the best I can do.

Stella said, "The opposite of 4 is -4. The opposite of 1 is - .
I think the opposite of a number is always negative."
Stella's claim is NOT true. Give an example of a number whose
opposite is NOT a negative number.

Answers

Answer:

Step-by-step explanation:

the number 0 doesn't have an "opposite"

10) An employee at a magazine company calls existing customers to renew
their subscriptions. For existing customers, employees earn 3 points for
renewing a subscription and earn-2 points for not renewing a subscription
After an hour, an employee renews 4 existing subscriptions and does not
renew 7 existing subscriptions. Which of the following is the expression
that represents this situation? *
O A 4(3) +-7(2)
O B 4(-2) + 7(3)
O C4(3) + 7(-2)
O D3(4) + 2(-7)

Answers

Answer:

C

Step-by-step explanation:

since the employee earns 3 points for every renewal and he renews 4 you must multiply those together. then you need to add the loss of points (-2) times the number of nonrenewal customers (7).

Help me pls TwT, I’m terrible at math

Answers

Answer:

The answer is 49

Step-by-step explanation:

Rate of change=  (f(b)-f(a))/(b-a)

a = 3 and b = 5

Rate of change = (125-27)/(5-3)

= 49

Please help me with this question it contains angles and measurements

Answers

Answer:

m∠ONP = 43*

m∠LNO = 137*

m∠MNP = 137*

Step-by-step explanation:

Each line segment is a straight line meaning they are each worth 180°, so if you take 43° from 180° you're eft with 137° which is what ∠LNO and ∠MNP are equal to. ∠ONP is 43° since it is a vertical angle to ∠MNL which is also 43°.

See photo hope it helps

A square photo has a side length of 0.17 foot. The photo is enlarged by doubling the dimensions. Then it is enlarged again by tripling the new dimensions.

Answers

Calculate the side length of the enlarged picture

Answer:

Hence, final picture will have a side length of 1.02 foot

Step-by-step explanation:

Side length of square photo, s = 0.17

Original dimension = (0.17 by 0.17)

Enlarged photo = double the original dimension:

2 * (0.17 * 0.17)

(0.34 * 0.34)

Second enlargement = Tripling the new dimension:

3 * (0.34 * 0.34)

(1.02 * 1.02)

Hence, final enlarged dimension = (1.02 * 1.02)

Hence, final picture will have a side length of 1.02 foot


someone help me with this I would really appreciate it !

Answers

Answer:

V = 126 [tex]mi^{3}[/tex]

Step-by-step explanation:

Volume of a pyramid is V = [tex]\frac{lwh}{3}[/tex]

l = length

w = width

h = height

width is 6 mi

length is 7 mi

height is 9 mi

V = [tex]\frac{6*7*9}{3}[/tex]

V = 126 [tex]mi^{3}[/tex]

please answer quickly. thanks in advance.

Answers

Answer:

KM=60°

Step-by-step explanation:

The average of arc LN and arc KM is equal to 110.

[tex]\frac{160+KM}{2} =110[/tex]

160+KM=220

KM=60

Jay went on a diet and lost 5 pounds each month. Find Jay's net weight change in 6 months.

Answers

Answer:

a 30 pound weight change in 1 month

Step-by-step explanation:

5 pounds

--------------- times 6 months  results in a 30 pound weight change in 1 month

 1 month

plss help mee

Ethan drew the diagram below with the points labeled as shown.


Which point shows where the perpendicular lines meet?

A. Point W
B. Point X
C. Point Y
D. Point Z​

Answers

Answer:

B. Point X

Step-by-step explanation:

Perpendicular Lines meet at a 90° angle.

One of the legs of a right triangle measures 9 cm and the other leg measures 13 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
CAN I GET HELP PLEASE

Answers

Answer:

15.81

Step-by-step explanation:

(6^-8)^-3, 81^7 • 3^-3/9^7, 8^-5/8^7, 9^-4• 9^6. Use the Law of exponents to simplify. Do not use negative exponents in your answer.

Answers

Okay so you first multiply them and find out what is the multiples and can you post a picture instead

A piece of fabric is for 1/6 yards long if 2 1/4 yards are cut off The Yards remain I'll see you

Answers

Answer:

2 1/12 yds remain

Step-by-step explanation:

1. You first change the denominators, so then the fractions will be alike. 2 1/4-1/6

2. Find the LCD or Least Common Denominator. 12 can go into and it is alike, so 2 3/12-2/12

3. Now we can find the answer!

So the answer is 2 1/12

Please mark me brainliest!

You lip a coin 20 times. Predict about how many times would you expect to flips
heads (P heads)?
about
times

Answers

10/20 times because there is a 50/50 chance that heads is flipped each time
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