he mean of a normal probability distribution is 60; the standard deviation is 5. a. About what percent of the observations lie between 55 and 65?     b. About what percent of the observations lie between 50 and 70?     c. About what percent of the observations lie between 45 and 75? (Round your answers to 1 decimal place.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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he mean of a normal probability distribution is 60; the standard deviation is 5.

a. About what percent of the observations lie between 55 and 65?

 

 

b. About what percent of the observations lie between 50 and 70?

 

 

c. About what percent of the observations lie between 45 and 75? (Round your answers to 1 decimal place.)

 

 
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