Find the indicated probability.
If P(A or B)equals=0.7 P(A)equals=0.3 and P(A and B)equals=0.15 find P(B).
P(B)equals=
Either-or probabilities are found by adding the individual probabilities.
P(A or B)= P(A) + P(B) = .03 + P(B) = .07
P(B) = .04
Typos?