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If V(X) = 4 then find V(2X).
+2
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asked
Feb 17, 2019
in
Mathematics
by
kratos
If V(X) = 4 then find V(2X).
mathematical expectation
class-11
random variables
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+4
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answered
Mar 29, 2020
by
kratos
Best answer
V(2x) = 22V(x)
= 4 (4) = 16;
Since V(aX)
= a2 V(X).
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