(a)[1]
Estimate, from the graph, how many people took between $4$ and $7.5$ minutes to complete the puzzle.
(b)[4]
On the grid below, draw a box-and-whisker plot to summarise the information in the cumulative frequency graph.
Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
84 people try a particular puzzle. The times, in minutes, needed to complete the puzzle are recorded. They are shown on the cumulative frequency graph below.