Suppose that the distribution of scores on the Graduate Record Exam (GRE) is approximately normal, with a mean of µ = 150 and a standard deviation of o = 5. For the population of students who have taken the GRE: a. What proportion have GRE scores less than 145? b. What proportion have GRE scores greater than 157? c. What is the minimum GRE score needed to be in the highest 20% of the population? d. If a graduate school accepts only students from the top 10% of the GRE distribution, what is the minimum GRE score needed to be accepted?
Suppose that the distribution of scores on the Graduate Record Exam (GRE) is approximately normal, with a mean of µ = 150 and a standard deviation of o = 5. For the population of students who have taken the GRE: a. What proportion have GRE scores less than 145? b. What proportion have GRE scores greater than 157? c. What is the minimum GRE score needed to be in the highest 20% of the population? d. If a graduate school accepts only students from the top 10% of the GRE distribution, what is the minimum GRE score needed to be accepted?
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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