MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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I'm stumped on these 2 questions. THe second picture i only need help with part B. Thank you

P(x) 0.15 1 0.3 0.05 3 0.5 a. Find the expected value of the probability distribution. Round to two decimal places. 1.90 b. Find the standard deviation of the probability distribution. Round to two decimal places. 0.19
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Transcribed Image Text:P(x) 0.15 1 0.3 0.05 3 0.5 a. Find the expected value of the probability distribution. Round to two decimal places. 1.90 b. Find the standard deviation of the probability distribution. Round to two decimal places. 0.19
A population of values has a normal distribution with u = 125.3 and o = 60.1. A random sample of size 139 is drawn. Find the probability that a sample of size n = 139 is randomly selected with a mean greater than 116.1. Round your answer to four decimal places. P(M > 116.1) =
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Transcribed Image Text:A population of values has a normal distribution with u = 125.3 and o = 60.1. A random sample of size 139 is drawn. Find the probability that a sample of size n = 139 is randomly selected with a mean greater than 116.1. Round your answer to four decimal places. P(M > 116.1) =
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