Normal Distributions

Question 1

What is the best estimate of the standard deviation of the Normal distribution?

Revolt · Accepted Answer

0.5

Question 2

Complete the statements based on the Normal distribution.

Revolt · Accepted Answer

of the employees make $8 per hour or less.: 2.5%; of the employees make $9 per hour or less.: 97.5%

Question 3

2.5%5%95%✔ 97.5%

Revolt · Accepted Answer

✔ 97.5%

Question 4

What percentage of students scored 78.5 or better?

Revolt · Accepted Answer

16%

Question 5

18.568✔ 81.595

Revolt · Accepted Answer

✔ 81.5

Question 6

What percentage of soccer balls from the factory have a pressure between 8.1 and 8.7 PSI?

Revolt · Accepted Answer

49.85%

Question 7

Question 159727

Revolt · Accepted Answer

159751

Question 8

What is the approximate standard deviation?

Revolt · Accepted Answer

12

Question 9

of the employees make $8 per hour or less.

Revolt · Accepted Answer

2.5%; of the employees make $8 per hour or less.: 2.5%; of the employees make $9 per hour or less.: 97.5%

Normal Distributions Answers