Mathematics 4024 · O Level · Averages and measures of spread
Averages and measures of spread — practice question
In a survey, $50$ students were asked how much time they spent exercising in a single week. The outcomes are set out in the table.
(a(i))[3]
Calculate an estimate for the mean amount of time each student spent exercising during that week.
(a(ii))[1]
Simon’s exercise time for that week is shown below. Tuesday $12{:}37\text{ p.m.}$ until $1{:}24\text{ p.m.}$. Thursday $8{:}57\text{ a.m.}$ until $9{:}42\text{ a.m.}$. In which interval is his time recorded?
(b(i))[2]
Complete all missing entries in the table.
(b(ii))[1]
Finish the pie chart.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Obtain weighted sum” …