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A man takes a step forward with probabil...

A man takes a step forward with probability 0.4 and back ward with probability 0.6. The probability that at the end of eleven steps he is one step away from the starting point is:

A

`(2^5 .3^5)/(5^(10))`

B

`462 xx ((6)/(25))^5`

C

`231 xx (3^5)/(5^(10))`

D

none of these

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The correct Answer is:
B
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