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4.5 Exercise 14

Avg difficulty 2.5

In one of its Spring catalogs, L.L. Bean® advertised footwear on 29 of its 192 catalog pages. Suppose we randomly survey 20 pages. We are interested in the number of pages that advertise footwear. Each page may be picked at most once.

  1. In words, define the random variable X.
  2. List the values that X may take on.
  3. Give the distribution of X. X ~ _____(_____,_____)
  4. How many pages do you expect to advertise footwear on them?
  5. Calculate the standard deviation.

OpenStax Introductory Statistics 2e, 4.5 Hypergeometric Distribution, exercise 14

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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.