Author Question: Suppose P(A) = 0.30, P(B) = 0.50, and P(BA) = 0.60. a. Find P(A and B). b. Find P(A or B). c. ... (Read 70 times)

roselinechinyere27m · **on:** Jun 24, 2018

Suppose P(A) = 0.30, P(B) = 0.50, and P(BA) = 0.60.
a. Find P(A and B).
b. Find P(A or B).
c. Find P(AB).

Question 2

Suppose A and B are two mutually exclusive events for which P(A) = 0.30 and P(B) = 0.40.
a. Find P(A and B).
b. Find P(A or B).
c. Are A and B independent events? Explain using probabilities.

sultana.d · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

a. 0.18
b. 0.62
c. 0.36

Answer to Question 2

a. 0
b. 0.70
c. No. P(A and B) = 0 because they are mutually exclusive events. If they were independent events, you would have P(A and B) = P(A) P(B) = 0.12.