Assume that a set of test scores is normally distributed with a mean of 100 100...

Question

Question

Assume that a set of test scores is normally distributed with a mean of 100

100 and a standard deviation of 15

15. Use the 68-95-99.7 rule to find the following quantities.

a. The percentage of scores less than 100 is 50%.

(Round to one decimal place as needed.)

b. The percentage of scores greater than 115%. ___

(Round to one decimal place as needed.)

c. The percentage of scores between 70 and 115%. ___

(Round to one decimal place as needed.)

Answer 1

Answer #1

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Answer 2

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