AI Tutor
Back to 7.2 The Central Limit Theorem for Sums (Optional)

7.2 Exercise 11

Avg difficulty 2.5


Use the following information to answer the next five exercises: The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly.

Find the probability that the sum of the 40 values is greater than 7,500.

OpenStax Statistics, 7.2 The Central Limit Theorem for Sums (Optional), exercise 11

AI Tutor

Adapted from Statistics © 2022 Rice University. Licensed under CC BY 4.0. Source: Statistics. Imported at revision 7dea80a.