Question
P(A) = 0.50, P(B) = 0.40, and P(A and B) = 0.15. What is P(A or B)?
Answer
0.75
- Q: What is the formula for P(A or B)? A: P(A or B) = P(A) + P(B) - P(A and B)
- A: P(A or B) = 0.50 + 0.40 - 0.15
- A: P(A or B) = 0.75
0.75