Mathematics
Mathematics, 27.07.2019 06:30, shaylawaldo11

Some standardized tests, such as the sat test, incorporate a penalty for wrong answers. for example, a multiple-choice question with five possible answers will have 1 point awarded for a correct answer and 1/4 point lost for an incorrect answer. find the expected number of points (mean) received for a multiple-choice question with five possible answers when a student just guesses at random.

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