CUET UG Math 30 Aug 2022 Shift 2

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Question : 14 of 50

Marks: +1, -0

The probability distribution of X is:

x	0	1	2	3	4
P(X = x)	0.1	2k	k	k	2k

Then var(X) =

$\;{3}/{20}$
$\;{9}/{4}$
$\;{141}/{20}$
$\;{159}/{80}$

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