Let the probability distribution of random variable X be {\X} -2 -1 1 2 3 {\P}( {\X}=x) k 2 k 2 k k 3 k Then, the value of E (X^2) is

KEAM 2023 Math Solved Paper

Question : 31 of 120

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Let the probability distribution of random variable X be

X	-2	-1	1	2	3
P(X=x)	k	2k	2k	k	3k

Then, the value of E(X2) is

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