by m.s
Last Updated September 11, 2019 13:20 PM

I have `P(AB)=0.1`

and `P(A'B')=0.4`

i must find `P(A)`

and `P(B)`

.
I confess i have no idea about it.
I have another similar exercise that says i have `P(A)=0.2 and P(B)=0.3`

to find a)`P(A U B) ,b) P(A'B'),c) P(AB') and d) P(A'B)`

I have a) `P(A U B) =P(A)+P(B) =0.2+0.3=0.5`

ok i think i am right to this
b)I know that

```
P(A)=0.2 so P(A')=1-P(A) => P(A')=1-0.2=0.8
P(B')=1-0,3=0.7
```

but P(A') and P(B') are together ,P(A'B')? i multiply or i sum them ? what now?

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