Question 7 — IGCSE 0580 Oct/Nov 2023 Paper 41
Cambridge IGCSE Mathematics 0580, Extended tier, calculator. Topic: Statistics · Grouped data. Worth 7 marks.
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Question text
7 The frequency table shows the time of each of 42 athletes in a race.
Time (t seconds) Number of athletes
216 1 t G 219 9
219 1 t G 224 14
224 1 t G 234 14
234 1 t G 244 2
244 1 t G 264 3
(a) Calculate an estimate of the mean time.
.................................... seconds [4]
(b) Complete the histogram to show the information in the frequency table.
Two of the blocks have been drawn for you.
4
3
Frequency
density 2
1
0
t
210 220 230 240 250 260 270
Time (seconds)
[3]
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