b)
P(A1 n B) = P(B | A1)*P(A1) = 0.20*0.30 = 0.06
P(A2 n B) = P(B | A2)*P(A2) = 0.05*0.55 = 0.0275
c)
P(B) = P(A1 n B) +P(A2 n B) = 0.06 + 0.0275 = 0.0875
d)
P(A1 | B) = P(A1 n B)/P(B) = 0.06/ 0.0875 = 0.6857
P(A2 | B) = P(A2 n B)/P(B) = 0.0275/ 0.0875 = 0.3143
Problem s 1 AC P The prior probabies for events and ARA) - - 0.5 that...