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probability distribution of a random variable X is
If `a=P(Xge2) and b=P(Xlt3)` then

A

`altb`

B

`agtb`

C

a=b

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`a=P(Xge2)=P(X=2)+P(X=3)+P(X=4)`
`=4k+2k+k=7k`
`b=P(Xlt3)=P(X=0)+(P(X=1)+P(X=2)`
`=k+2k+4k=7k`
`therefore" "a=7k=b`
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