Question 15 — IGCSE 0580 May/June 2024 Paper 23
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Statistics · Cumulative frequency. Worth 4 marks.
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Question text
15
200
180
160
140
120
Cumulative
100
frequency
80
60
40
20
0
0 10 20 30 40 50
Time (seconds)
The time taken for each of 200 students to complete a calculation is measured.
The cumulative frequency diagram shows the results.
Use the diagram to find an estimate for
(a) the interquartile range
............................................... s [2]
(b) the number of students taking more than 40 seconds to complete the calculation.
................................................. [2]
(cid:300)(cid:217)(cid:250)(cid:190)(cid:288)(cid:179)(cid:237)(cid:197)(cid:245)(cid:223)(cid:249)(cid:213)(cid:258)(cid:216)(cid:291)(cid:230)(cid:286)(cid:215)
© UCLES 2024 (cid:300)(cid:279)(cid:279)(cid:229)(cid:200)(cid:287)(cid:226)(cid:244)(cid:217)(cid:258)(cid:268)(cid:243)(cid:186)(cid:244)(cid:295)(cid:178)(cid:208)(cid:258) 0580/23/M/J/24
(cid:293)(cid:245)(cid:229)(cid:277)(cid:245)(cid:181)(cid:261)(cid:181)(cid:293)(cid:229)(cid:213)(cid:293)(cid:277)(cid:277)(cid:197)(cid:245)(cid:181)(cid:213)
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(cid:44)(cid:1)(cid:1)(cid:2)(cid:10)(cid:7)(cid:6)(cid:6)(cid:4)(cid:3)(cid:10)(cid:8)(cid:1)(cid:8)(cid:44)
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