Answer to Question #327412 in Statistics and Probability for agbai

Question

If A and B are two non-mutually exclusive events, then

Pr⁡A∪Pr⁡B is

Select one:

a. Pr⁡A+Pr⁡B+Pr⁡A∩Pr⁡(B)

b. Pr⁡A+Pr⁡B-Pr⁡A∩Pr⁡(B)

c. Pr⁡A-Pr⁡B-Pr⁡A∩Pr⁡(B)

d. Pr⁡A+Pr⁡B-Pr⁡A∩Pr⁡(B)

Answer 1

The right answer is:

b. Pr⁡A+Pr⁡B-Pr⁡A∩Pr⁡(B)