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If X be binomial distribution with mean ...

If X be binomial distribution with mean np and variance npq, then find the`(P(x=k))/(P(x=k-1))`.

A

`(n-k)/(k-1)*(p)/(q)`

B

`(n-k+1)/(k)*(p)/(q)`

C

`(n+1)/(k)*(q)/(p)`

D

`(n-1)/(k+1)*(q)/(p)`

Text Solution

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The correct Answer is:
B
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