Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
The driver notes the distance covered on each of 150 journeys. The distances, each rounded to the nearest km, are shown in the table below.
(a)[4]
Draw a cumulative frequency graph to display the data.
(b)[2]
For 30% of these journeys the distance travelled is $d$ km or more. Use your graph to estimate $d$.
(c)[3]
Calculate an estimate of the mean distance travelled for the 150 journeys.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate cumulative frequencies identified (from either a table or a graph)” …