Suppose the scores on a statistics exam follow a normal distribution with a mean of 70 and a standard deviation of 10. If a student is randomly selected, what is the probability that their score is between 80 and 90? If a group of 50 students is randomly selected, what is the probability that their average score is greater than 75?
Suppose the scores on a statistics exam follow a normal distribution with a mean of 70 and a standard deviation of 10. If a student is randomly selected, what is the probability that their score is between 80 and 90? If a group of 50 students is randomly selected, what is the probability that their average score is greater than 75?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Suppose the scores on a statistics exam follow a normal distribution with a mean of 70 and a standard deviation of 10. If a student is randomly selected, what is the probability that their score is between 80 and 90? If a group of 50 students is randomly selected, what is the probability that their average score is greater than 75?
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