What is the expected value of X?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The joint probability distribution of variables X and Y
is shown in the table below, where X is the number of
tennis racquets and Y is the number of golf clubs sold
daily in a small sports store.
X
1
0.13
0.08
0.22
Y
1
0.16
0.14
0.03
2
0.07
0.04
0.13
What is the expected value of X?
а. 1.02
O b. 0.36
О с. 0.26
O d. 1.85
Transcribed Image Text:The joint probability distribution of variables X and Y is shown in the table below, where X is the number of tennis racquets and Y is the number of golf clubs sold daily in a small sports store. X 1 0.13 0.08 0.22 Y 1 0.16 0.14 0.03 2 0.07 0.04 0.13 What is the expected value of X? а. 1.02 O b. 0.36 О с. 0.26 O d. 1.85
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