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A fair coin is tossed 99 times. If X is ...

A fair coin is tossed 99 times. If X is the number of times heads occur, then `P(X=r)` is maximum when `r` is `49 , 50` b. `50 , 51` c. `51 , 52` d. none of these

A

49 or 50

B

50 or 51

C

51

D

None of these

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DISHA PUBLICATION-PROBABILITY -2-EXERCISE - 1 : CONCEPT BUILDER
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