The analytic scores on a standardized aptitude test are known to be normally distributed with mean μ = 610 and standard deviation = 115. (a) Draw a normal curve with the parameters labeled. Shade the region that represents the proportion of test takers who scored less than 725. (b) Suppose the area under the normal curve to the left of X = 725 is 0.8413. Provide an interpretation of this result.
The analytic scores on a standardized aptitude test are known to be normally distributed with mean μ = 610 and standard deviation = 115. (a) Draw a normal curve with the parameters labeled. Shade the region that represents the proportion of test takers who scored less than 725. (b) Suppose the area under the normal curve to the left of X = 725 is 0.8413. Provide an interpretation of this result.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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