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The value of B (4,(1)/(4)) at r=3 is...

The value of B `(4,(1)/(4))` at r=3 is

A

`(1)/(64)`

B

`(3)/(64)`

C

`(5)/(64)`

D

`(3)/(32)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Here `" " r=3, n=4, p=(1)/(4)`
`:. " "q=1-p=1-(1)/(4)=(3)/(4)`
Now, `B(4,(1)/(4))` at r=3, is `""^(4)C_(3)((1)/(4))^(3)((3)/(4))^(1)=4xx(3)/(4^(4))=(3)/(64)`
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