Suppose 150 people take a Disney princess trivia quiz, and say the mean score was 100 out of200 points, with a standard deviation of 40. Supposing the scores are distributed in a normal probability distribution. Approximately how many people got above a 180? What is the probability that someone got between a 91 and a 157 on the quiz? (Round your answer to three digits after the decimal).
Suppose 150 people take a Disney princess trivia quiz, and say the mean score was 100 out of200 points, with a standard deviation of 40. Supposing the scores are distributed in a normal probability distribution. Approximately how many people got above a 180? What is the probability that someone got between a 91 and a 157 on the quiz? (Round your answer to three digits after the decimal).
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Suppose 150 people take a Disney princess trivia quiz, and say the mean score was 100 out of200 points, with a standard deviation of 40. Supposing the scores are distributed in a
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