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A fair coin is tossed 99 times. Let X be...

A fair coin is tossed 99 times. Let X be the number of times heads occurs. Then (P(X=r) is maximum when r is

A

49,50

B

50,51

C

51,52

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Here, `n=99, p=1//2`. Therefore ,`(n+1)p=50`
So, `P(X=r)` is maximum when `r=50or r=49`.
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