Mathematics, 27.05.2020 08:01 jazz9876

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A multiple-choice test has 15 questions. Each question has 4 possible responses, so the
probability is 0.25 for guessing right. Suppose you randomly guess for all 15 questions.
Let X = the number of correct responses.

1. Calculate the mean of X. Interpret the mean in context.

2. Calculate the standard deviation of X. Interpret the mean in context.

Answers: 1

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