Exercise 1.3. A normally distributed random variable has a mean of 449: a. If a score of 325 has a standard normal score-1.38, compute for the variance of X. b. If a score of 404 is three standard deviations below the mean, find the standard deviation of X. c. If a score of 433 lies two standard deviations above the mean, find the variance of X.
Exercise 1.3. A normally distributed random variable has a mean of 449: a. If a score of 325 has a standard normal score-1.38, compute for the variance of X. b. If a score of 404 is three standard deviations below the mean, find the standard deviation of X. c. If a score of 433 lies two standard deviations above the mean, find the variance of X.
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 12PPS
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