Calculate P (A or B) in the following scenarios: b. P(A)=0.21, P(B)=0.15, P (A and B)=0.03 P(A or B)=

Answer 1

To calculate P(A or B), we can use the formula:

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

Given that P(A) = 0.21, P(B) = 0.15, and P(A and B) = 0.03, we can substitute these values into the formula:

P(A or B) = 0.21 + 0.15 - 0.03
= 0.36

So, P(A or B) is 0.36.