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The probability distribution of a ra...

The probability distribution of a random variable X is given below
`{:(x,1,2,3,4,5,6),(p(X=x),a,ea,a,b,b,0.3):}`
IF mean of X is 4.2 then a and b are respectively equal to

A

`0.3,0.2`

B

`0.1,0.4`

C

`0.1,0.2`

D

`0.2,0.1`

Text Solution

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The correct Answer is:
C
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