A professor at a university gives her large class an examination and finds that the scores follow very closely to a normal curve with a mean of 73 and a standard deviation of 8 a.....What is the probability that random student scores better than 85? b....What percent of students scored between 70 and 80? c...If taking random sample of 30 students, what is the probability that its mean grade is below 75?
A professor at a university gives her large class an examination and finds that the scores follow very closely to a normal curve with a mean of 73 and a standard deviation of 8 a.....What is the probability that random student scores better than 85? b....What percent of students scored between 70 and 80? c...If taking random sample of 30 students, what is the probability that its mean grade is below 75?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A professor at a university gives her large class an examination and finds that the scores follow very closely to a normal curve with a mean of 73 and a standard deviation of 8
a.....What is the
b....What percent of students scored between 70 and 80?
c...If taking random sample of 30 students, what is the probability that its mean grade is below 75?
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