Gcse Exam Questions On Cumulative Frequency (Grade B) Page 7
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106.
The table shows information about the heights of 40 bushes.
Height ( h cm)
Frequency
170 ≤ h < 175
5
175 ≤ h < 180
18
180 ≤ h < 185
12
185 ≤ h < 190
4
190 ≤ h < 195
1
(a)
Complete the cumulative frequency table.
Height
Cumulative
( h cm)
Frequency
170 ≤ h < 175
170 ≤ h < 180
170 ≤ h < 185
170 ≤ h < 190
170 ≤ h < 195
(1)
(b)
On the grid, draw a cumulative frequency graph for your table.
40
Cumulative
frequency
30
20
10
0
170
175
180
185
190
195
Height ( cm)
h
(2)
(c)
Use the graph to find an estimate for the median height of the bushes.
……………………… cm
(1)
(Total 4 marks)
LILIAN BAYLIS TECHNOLOGY SCHOOL
7
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