Find P(A or B). (Give your answer correct to two decimal places.)
P(A) = 0.35, P(B) = 0.5, and P(A and B) = 0.18
To find P(A or B), we need to consider the probability of either event A occurring, or event B occurring, or both events occurring.
The formula to find P(A or B) is given by:
P(A or B) = P(A) + P(B) - P(A and B)
Given:
P(A) = 0.35
P(B) = 0.5
P(A and B) = 0.18
Substituting these values into the equation:
P(A or B) = 0.35 + 0.5 - 0.18
Simplifying the expression:
P(A or B) = 0.85 - 0.18
P(A or B) = 0.67
Therefore, the probability of either event A occurring, or event B occurring, or both events occurring is 0.67.