SOLUTION: Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.42, P(B) = 0.48, and P(A and B) = 0.18

Algebra ->  Probability-and-statistics -> SOLUTION: Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.42, P(B) = 0.48, and P(A and B) = 0.18       Log On


   

Question 1069220: Find P(A or B). (Give your answer correct to two decimal places.)
P(A) = 0.42, P(B) = 0.48, and P(A and B) = 0.18
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
The formula is

P(A or B) = P(A) + P(B) - P(A and B)

Just plug in what's given and combine terms.

Edwin