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A rat maze consists of a striaght corrid...

A rat maze consists of a striaght corridor, at the end fo which the rats take either right or left turn. If 10 rats are placed in the maze one at a time and the random variable X denotes the number of right turns taken by the rats, then the probability that at least 9 rats will trun the same way is

A

`45/(2^10)`

B

`45/2^9`

C

`11/2^10`

D

`11/2^9`

Text Solution

Verified by Experts

The correct Answer is:
C
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