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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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1. A class is given an exam. The distribution of the scores is normal. The mean score is 72 and the standard deviation is 7. What is the probability that a student scored between 66 and 84?

P(66<x<84)=P(66<x<84)=
Express the probability as a decimal rounded to 4 decimal places.

2. A class is given an exam. The distribution of the scores is normal. The mean score is 76 and the standard deviation is 7. Determine the test score, cc, such that the probability of a student having a score less than cc is 86%86%.

P(x<c)=0.86P(x<c)=0.86

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