quiz has 10 multiple choice questions. Each question has 5 possible answers, one of which is correct. A correct answer is worth 8 points but 2 points are taken off for each incorrect answer. A student answers all the questions by guessing at random. A typical amount that a score is off from the expected value is _____ points
quiz has 10 multiple choice questions. Each question has 5 possible answers, one of which is correct. A correct answer is worth 8 points but 2 points are taken off for each incorrect answer. A student answers all the questions by guessing at random. A typical amount that a score is off from the expected value is _____ points
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.4: Expected Value
Problem 19E
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quiz has 10 multiple choice questions. Each question has 5 possible answers, one of which is correct. A correct answer is worth 8 points but 2 points are taken off for each incorrect answer. A student answers all the questions by guessing at random.
A typical amount that a score is off from the
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