4. Let A denote the event that the midtown temperature in Los Angeles is 70°F, and let B denote the event that the midtown temperature in New York is 70°F.

Also, let C denote the event that the maximum of the midtown temperatures in New York and in Los Angeles is 70°F. If P(A) = .3, P(B) = .4, and P(C) = .2, find the probability that the minimum of the two midtown tempera-

tures is 70°F.