20 plants were measured and their heights recorded in cm. Here are the heights:
b) Draw a frequency polygon
8.2 6.5 2.7 19.4
to represent the data.
16 14.1
17.1 14
8+
4.9 2.9 15.5 7.3
15 4.4 11.8 13.9
7
10.2 4.6 19.5 7.3
6
Frequency
a) Complete the frequency table.
Height, h cm Frequency
0 5
5 10 2
1
15 < h = 20
0
0
20
5 10 15
Height, h (cm)