(a)[2]
Complete the table by filling in the missing entry.
(b)[1]
Find the expected number of students who walk to school.
Mathematics 0580 · IGCSE · Relative and expected frequencies
Relative and expected frequencies — practice question
Rama asks a group of students how they get to school. The table gives the probability that a student picked at random travels to school by each method.
Bus: 0.40, Walk: 0.32, Car: 0.17, Other: (blank).
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use $1 - (0.4 + 0.32 + 0.17)$ to find the missing probability.” …
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