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Given that X ~ B( n=10, p) .If E (x) = 8...

Given that X ~ B( n=10, p) .If E (x) = 8, find the value of p .

A

`0.6`

B

`0.7`

C

`0.8`

D

`0.4`

Text Solution

Verified by Experts

Given, `X~B(n=10,P).`
`E(X)=8`
`E(X)=nP`
`therefore nP=8`
`10P=8`
`P=0.8`
Hence the correct answer from the given alternative is (c ).
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