1. The mean score and the standard deviation in the Statistics test are respectively equal to 80 and 2.5, whereas in the Mathematics test the mean score is 70 and the standard deviation is 2. If Liza got a score of 75 in Mathematics in which subject is her standing better assuming normality in both subjects? 2. The results of a nationwide aptitude test in Mathematics are normally distributed with mean = 63 and standard deviation = 5. What is the 97.5th percentile?
1. The mean score and the standard deviation in the Statistics test are respectively equal to 80 and 2.5, whereas in the Mathematics test the mean score is 70 and the standard deviation is 2. If Liza got a score of 75 in Mathematics in which subject is her standing better assuming normality in both subjects? 2. The results of a nationwide aptitude test in Mathematics are normally distributed with mean = 63 and standard deviation = 5. What is the 97.5th percentile?
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.3: Shapes Of Distributions
Problem 14E
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