Mathematics, 24.09.2019 17:30 kony345p

The a. p. statistics exam consists of a multiple-choice section where each question has five choices. sara estimates that she has a 75% chance of knowing each question. if she does not know the answer, she will randomly guess.
a) what is the probability of sara getting a question correct?
b) the a. p. exam has 40 questions, how many might sara expect to get correct?

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The a. p. statistics exam consists of a multiple-choice section where each question has five choices...