Question 5 — IGCSE 0580 May/June 2023 Paper 41
Cambridge IGCSE Mathematics 0580, Extended tier, calculator. Topic: Statistics · Cumulative frequency. Worth 13 marks.
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Question text
5 (a) There are 160 people in a village.
The cumulative frequency diagram shows information about their ages.
160
140
120
100
Cumulative
80
frequency
60
40
20
0
0 10 20 30 40 50 60 70
Age (years)
(i) Find an estimate for
(a) the median age
................................................. [1]
(b) the lower quartile
................................................. [1]
(c) the number of people who are 50 or more years of age
................................................. [2]
(d) the 65th percentile.
................................................. [2]
© UCLES 2023 0580/41/M/J/23
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(ii) The youngest person in the village is 1 year old and the oldest is 70 years old.
(a) Draw a box-and-whisker plot to show the distribution of ages in the village.
0 10 20 30 40 50 60 70 80
Age (years)
[3]
(b) Write down an estimate of the percentage of people in the village that are younger than
the median age.
............................................. % [1]
(b) The frequency table shows information about the age of each person in another village.
Age (n years) 0 1 n G 20 20 1 n G 30 30 1 n G 50 50 1 n G 80
Frequency 52 37 24 60
On the grid, complete the histogram to show this information.
The first block has been drawn for you.
4
3
Frequency
2
density
1
0
n
0 10 20 30 40 50 60 70 80
Age (years)
[3]
© UCLES 2023 0580/41/M/J/23 [Turn over
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