Question

help please
If P (A) = 0.2 and P (B) = 0.3 and A and B are independent but NOT disjoint, find P (A or B).

Answer 1

is it .5?

Answer 2

\[P(A\cup B)=P(A)+P(B)+P(A\cap B)\]
If \(A\) and \(B\) are independent, then \(P(A\cap B)=P(A)P(B)\).

Answer 3

So thats saying that p(A or B)= .2*.3?

Answer 4

Right.

Answer 5

oh ok Thank you very much :)

Answer 6

yw