Mathematics 0580 · IGCSE · Relative and expected frequencies

Relative and expected frequencies — practice question

Samira chooses one of these cards at random and then puts it back.

(a)[1]

Find the probability that she selects an odd number.

(b)[1]

Samira repeats this 35 times. Calculate the number of times Samira is expected to choose an odd number.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\frac{4}{7}$” …