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For the following probability distributi...

For the following probability distribution.

E(X) is equal to

A

0

B

`-1`

C

`-2`

D

`-1.8`

Text Solution

Verified by Experts

`E(X)=SigmaXP(X)`
`=-4xx(0.1)+(-3xx0.2)+(-2xx0.3)+(-1xx0.2)+(0xx0.2)`
`=-0.4-0.6-0.6-0.2=-1.8`
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