1.

A fair coin is tossed 9 times the probability that at least 5 consecutive heads occurs is :

Answer»

`5/64`
`3/32`
`""^9C_5 (1/2)^9`
NONE of these

SOLUTION :
REQUIRED PROBABILITY `(1/2)^5 + (1/2)^6 + (1/2)^6 +(1/2)^6 + (1/2)^6 = 3/32 `


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