Lemma
MediumDiscrete distributions
OpenStax, Introductory Statistics 2e §4.3 Binomial Distribution · Exercise 20 · Probability · Discrete distributions

Binomial Distribution · Exercise 20

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.

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OpenStax, Introductory Statistics 2e · §4.3 Binomial Distribution · Exercise 20

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