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Back to 7.2 The Central Limit Theorem for Sums

7.2 Exercise 21

Avg difficulty 2.5


Use the following information to answer the next six exercises: A researcher measures the amount of sugar in several cans of the same soda. The mean is 39.01 with a standard deviation of 0.5. The researcher randomly selects a sample of 100.

Find the probability that the sums will fall between the z-scores –2 and 1.

OpenStax Introductory Statistics 2e, 7.2 The Central Limit Theorem for Sums, exercise 21

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Adapted from Introductory Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Statistics 2e. Imported at revision 50ec917.