16 Cumulative Frequency Worksheet Page 2
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27MEP Y9 Practice Book B
Example 2
Determine the median of the following set of values:
44
32
88
19
33
74
62
31
33
56
Solution
First write the numbers in order:
19
31
32
33
33
44
56
62
74
88
In this case, there are 2 middle numbers, 33 and 44. The median will be the mean
of these.
+
33
44
=
Median
2
77
=
2
=
38.5
Example 3
A class collected data on the number of people living in their home, which is shown
in the following table:
Number of People
Frequency
Living in Home
2
3
3
9
4
10
5
2
6
3
7
1
8
1
9
0
10
1
(a)
Calculate the mean number of people living in each home.
(b)
Determine the median of the data.
(c)
State the mode of the data.
169
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