STAT/MATH 394B

Solution, Homework 2

2.1.7 A={male}, B={lefthanded}.

2.1.8 P(B ) = 1-0.55 so

2.1.9

2.1.12

The unfavorable events (n-m) are those in which we get no face cards, i.e. possibilities. Hence the probability is .

2.1.16 (a) There are n = 6³ possible outcomes. Of those m = 6·5·4 are favorable, so the probability is 120/216.

(b) Here m = 6·1·1 so the probability is 6/216.