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In a binomial distribution B(b,p=1//4), ...

In a binomial distribution `B(b,p=1//4)`, if the probability of at least one success is greater than or equal to `9//10`, then n is greater than

A

`(1)/(log_(10)4-log_(10)3)`

B

`(1)/(log_(10)4+log_(10)3)`

C

`(9)/(log_(10)4-log_(10)3)`

D

`(4)/(log_(10)4-log_(10)3)`

Text Solution

Verified by Experts

The correct Answer is:
A
According to the question
`1-q^(n)ge9/10`
`implies((3)/(4))^(n)ge1/10`
`impliesnge-log_(3/4)10`
`=nge(1)/(log_(10)4-log_(10)3)`
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