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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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![Let X denote the number of VCRs sold during a random week by a certain store. The probability function
of X is
f(x)
X
0
0.6164
1 0.0956
2 0.0354
3 0.0461
4 0.2065
W|N
a) Calculate the expected number of VCRs sold in a random week.
E[X] = 1.2307
b) Calculate E[4X + 2] = 6.9228
x
X](https://content.bartleby.com/qna-images/question/b04829d0-4645-426e-bf1a-7ada40b0786f/6c5962c4-5647-4fde-9bac-8e4abe52c807/3cx8lqr_thumbnail.png)
Transcribed Image Text:Let X denote the number of VCRs sold during a random week by a certain store. The probability function
of X is
f(x)
X
0
0.6164
1 0.0956
2 0.0354
3 0.0461
4 0.2065
W|N
a) Calculate the expected number of VCRs sold in a random week.
E[X] = 1.2307
b) Calculate E[4X + 2] = 6.9228
x
X
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