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A random variable X takes the values 0,1...

A random variable X takes the values 0,1 and 2. If P(X=1)=P(X=2) and P(X=0)=0.4 then the mean of the random variable X is

A

0.2

B

0.5

C

0.7

D

0.9

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The correct Answer is:
D
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