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A fair coin is tossed 9 times. The proba...

A fair coin is tossed 9 times. The probability that at least 5 consecutive heads occurs is k then value of 100 k is______.

A

`5/64`

B

`3/32`

C

`""^9C_5 (1/2)^9`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B

Required probability `(1/2)^5 + (1/2)^6 + (1/2)^6 +(1/2)^6 + (1/2)^6 = 3/32 `
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