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The mean of a normal probability distribution is 60; the standard deviation is 5. a
Chapter 0, Problem 10(choose chapter or problem)
QUESTION:
The 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?
Questions & Answers
QUESTION:
The 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?
ANSWER:Step 1 of 5
Given, mean of the normal distribution is
And the standard deviation is