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Give P(A)" "=3/5 and P(B)" "=1/5dot Find...

Give `P(A)" "=3/5` and `P(B)" "=1/5dot` Find `P(AorB)` , if A and B are mutually exclusive events.

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Given,`P(A)=3/5 `and `P(B)=1/5`
as A and B are mutually exclusive so `P(A nn B)=0`
`P(A uu B)=P(A)+P(B)-P(A nn B)`
=`3/5+1/5`
=`4/5.`
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