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An electric component manufactured by'RA...

An electric component manufactured by`'RASU` electronics' is tested for its defectiveness by asophisticated testing device. Let A denote the event the device is defective and B the event thetesting device reveals the component to be defective. Suppose `P(B/A) = a. and P((B')/(A'))= 1- alpha,` where `0 lt alpha lt1.` If the probability that the component is not defective is `lambda.` then the value of `4lambda` is

A

`P(B)=2 alpha (1-alpha)`

B

`P(A'//B)1//2`

C

`P(B')=(1-alpha)^(2)+alpha^(2)`

D

`P(A'//B')=[alpha//(1-alpha)]^(2)`

Text Solution

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The correct Answer is:
A, B, C
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