Solve the problem.39) Scores on a test are normally distributed with a mean of 67.8 and a standard deviation of 11.4. FindP81, which separates the bottom 81% from the top 19%.A) 71.1B) 77.8C) 0.88Find the indicated probability.D) 0.29139)

Solution: Let X be the test score are normally distributed with mean 67.8 and standard deviation…

Answered: Solve the problem. 39) Scores on a test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The standard deviation of the scores: 2, 1, 1, 8 is O 1.71 2 2.92 O.8.5
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Solve the problem. 39) Scores on a test are normally distributed with a mean of 67.8 and a standard deviation of 11.4. Find P81, which separates the bottom 81% from the top 19%. A) 71.1 B) 77.8 C) 0.88 D) 0.291 39)