Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Suppose X has the following probability mass function 
. What 
?
Text Solution
Verified by ExpertsThe correct answer is:
B
Given probability distribution is
0 | 1 | 2 | |
0.2 | 0.5 | 0.3 |
where 
mass probability function
We know that,
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