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Brut [27]
4 years ago
14

Normal distribution has a mean of 101 and a standard deviation of 10. find probability that value selected at random is at most

121
Mathematics
1 answer:
Alex_Xolod [135]4 years ago
4 0

A probability app or table will tell you the probability of Z ≤ 2 is 0.97725.

_____

Your value of 121 is 2 * 10 = 2 standard deviations above the mean of 101.

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Jonathon and Raymond earn a base salary plus commission. Jonathon earns $1500 plus 10% of his sales each month. Raymond earns $1
joja [24]

Answer:

The Jonathon and Raymond need to sell 6000 sales to earn the same amount each month.

Step-by-step explanation:

Given data

Let no. of sales = x

Jonathon earning = $ 1500 + \frac{10}{100} x

Raymond earning = $ 1200 + \frac{15}{100} x

Given that the earnings of Jonathon & Raymond are same.

1500 + \frac{10}{100} x = 1200 + \frac{15}{100} x

300 =  \frac{5}{100} x

x = 6000 sales

Therefore the Jonathon and Raymond need to sell 6000 sales to earn the same amount each month.

4 0
3 years ago
5) Mrs. Bell went bowling again. Her bowling scores were 100, 172, 85, and 92. She wants
Alex73 [517]

Answer: She needs to bowl 120 or more on her next game.

Step-by-step explanation:

8 0
3 years ago
A roll of quarters is shaped like a cylinder and contains 40 each quarter has a thickness of 1.75 and a diameter of 24.26 mm Wha
jarptica [38.1K]

Answer:

D) 32,357mm^3

Step-by-step explanation:

Given

Quarters = 40

Thickness = 1.75mm

diameter = 24.26mm

First, we calculate the volume of 1 roll.

The volume of the cylinder is:

V = \pi r^2h

Where

r = \frac{1}{2} * diameter

r = \frac{1}{2} * 24.26mm

r = 12.13mm

And the thickness represents the height.

So:

The volume is:

V = 3.142 * 12.13^2 * 1.75

V = 809.03mm^3

The volume of the 40 is:

Roll= 40 * 809.03mm^3

Roll=32361.20mm^3

The closest option is (d):

7 0
3 years ago
Find the value of the variable using these steps.
mash [69]

Step-by-step explanation:

0.4 x + 3.9 = 5.7

hope 0.4 x = 5.78 - 3.9

0.4x = 1.88

x = 1.88/0.4

x = 4.7

3 0
3 years ago
Read 2 more answers
A group of friends are playing a trivia game. players spin a spinner 2 times to find the 2 categories of trivia questions they w
Delicious77 [7]

The probability that a player will be asked a math question and then a music question is 0.03125

<h3>How to determine the probability?</h3>

The size of the sections are given as:

Music = 0.5

Sport = 0.5

Others = 1

So, the total size is:

Total = 0.5 + 0.5 + 1 + 1 + 1

Evaluate

Total = 4

The probability of asking a math question is:

P(Math) = 1/4 = 0.25

The probability of asking a music question is:

P(Music) = 0.5/4 = 0.125

The required probability is:

P(Math and Music) = P(Math) * P(Music)

This gives

P(Math and Music) = 0.25 * 0.125

Evaluate

P(Math and Music) = 0.03125

Hence, the probability that a player will be asked a math question and then a music question is 0.03125

Read more about probability at:

brainly.com/question/25870256

#SPJ1

5 0
2 years ago
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