ACT Composite Scores Use the normal distribution in Exercise 14. (a) What percent of the ACT composite

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ACT Composite Scores Use the normal distribution in Exercise 14.

(a) What percent of the ACT composite scores are less than 16?

(b) Out of 1000 randomly selected ACT composite scores, about how many would you expect to be greater than 23?

Answer the questions about the specified normal distribution.


Data from Exercises 14

A member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded region of the graph. Assume the variable x is normally distributed.

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Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

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