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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Assume the random variable X has and expected value of 30 and a standard deviation of 8 and the random variable Y has an expected value of 50 and a standard deviation of 14.

Assume the random variable X has and expected value of 30 and a standard deviation of 8 and the random variable Y has an expected value of 50 and a standard deviation of 14. Let Z = 6X – 3Y. The standard deviation of Z is: а. 4068 b. 63.8 С. 30 O d. 540
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Transcribed Image Text:Assume the random variable X has and expected value of 30 and a standard deviation of 8 and the random variable Y has an expected value of 50 and a standard deviation of 14. Let Z = 6X – 3Y. The standard deviation of Z is: а. 4068 b. 63.8 С. 30 O d. 540
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