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In a series of 5 T-20 matches between In...

In a series of 5 T-20 matches between India and Australia, winning probability of India is `3/5` and of Australia is `2/5` . Then find the sum of mean and variance for India to win.

A

`15/5`

B

`4/5`

C

`21/5`

D

`9/5`

Text Solution

Verified by Experts

The correct Answer is:
C
Mean `= nP = 5 xx 3/5 =3`
Variance =` n P q =5 xx 3/5 xx 2/5 = 6/5`
Sum` 3 + 6/5 = 21/5`
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