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If f(x)= lamdae^(-ax)(agt0) for 0le xlt ...

If `f(x)= lamdae^(-ax)(agt0)` for `0le xlt infty` is a probability density, then `lamda` is equal to

A

a

B

`a^2`

C

`1/a`

D

`a^3`

Text Solution

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The correct Answer is:
A
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