Mathematics 0580 · IGCSE · Introduction to probability

Introduction to probability — practice question

Hattie has a box of coloured pens. She chooses one pen at random from the box. The probability that she chooses a red pen is 0.4.

(a)[1]

Calculate the probability that she does not take a red pen.

(b)[2]

Complete the table below.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is $0.6$.” …