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4.3 Exercise 32

Avg difficulty 2.5

Let X = the number of games won in that upcoming month.

A student takes a 32-question multiple-choice exam, but did not study and randomly guesses each answer. Each question has three possible choices for the answer. Find the probability that the student guesses more than 75% of the questions correctly.

OpenStax Introductory Statistics 2e, 4.3 Binomial Distribution, exercise 32

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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.