Mathematics 0580 · IGCSE · Relative and expected frequencies

Relative and expected frequencies — practice question

Jacinda is playing a game with a friend. The game can end in a win, a loss or a draw for her. The chance that she wins is $0.28$.

(a)[2]

Jacinda is twice as likely to draw the game as she is to lose it. Calculate the probability that she loses.

(b)[1]

Jacinda plays the game 150 times. Find the expected number of times that she wins.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “1 - 0.28” …