Applications with Standard Normal Distribution

Question 1

1.251.52.5

Revolt · Accepted Answer

1.25

Question 2

0.01790.58320.98211

Revolt · Accepted Answer

0.0179

Question 3

11%40%60%✔ 89%

Revolt · Accepted Answer

✔ 89%

Question 4

P(z > –2.1)1–P(z 2.1)

Revolt · Accepted Answer

1–P(z < 2.1)

Question 5

Which statement represents the percent of American adults with total cholesterol scores in the borderline-high range?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-12-09-20-05-task/mc001-3.jpg

Question 6

Using the standard normal table, about what percent of American adults have borderline-high cholesterol levels?5%35%✔ 40%90%

Revolt · Accepted Answer

✔ 40%

Question 7

The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. What is the probability that a battery you buy lasts at most 100 hours? Standardize the variable.x = 100 is equivalent to z = –0.570.57✔ –1.751.75.

Revolt · Accepted Answer

✔ –1.75

Question 8

Question 8

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-12-09-20-06-task/mc001-4.jpg

Question 9

The probability that a battery you buy lasts at most 100 hours is about ✔ 4%16%84%96%.

Revolt · Accepted Answer

✔ 4%

Applications with Standard Normal Distribution Answers

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