Two teams A and B play a soccer match, and we are interested in the winner. The sample space can be defined as

where a shows the outcome that A wins, b shows the outcome that B wins, and d shows the outcome that they draw. Suppose we know that:

(1) The probability that A wins is P(a) = P({a}) = 0.5;

(2) The probability of a draw is P(d) = P({d}) = 0.25.

a. Find the probability that B wins.

b. Find the probability that B wins or a draw occurs.

Transcribed Image Text:

S = {a,b,d},