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4.1 Exercise 8

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. How many pages do you expect to advertise footwear on them?
  4. Calculate the standard deviation.

OpenStax Introductory Business Statistics 2e, 4.1 Hypergeometric Distribution, exercise 8

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