
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Step 1
From the given information,
The probability distribution function as given below:
x | P(X=x) |
-3 | 0.1 |
-2 | 0.2 |
-1 | 0.3 |
0 | 0.05 |
As it is already given that sum of probability is not equal to one. Still required statistics can be solved as:
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