Frequency Polygons

1
Frequency Polygons Bar Graphs

• OCR Stage 6

2
Time t minutes 0 t lt 5 5 t lt 10 10 t lt 15 15 t lt 20 20 t lt 25
Number of students 10 16 30 22 4
3
Time t minutes 0 t lt 5 5 t lt 10 10 t lt 15 15 t lt 20 20 t lt 25
Number of students 10 16 30 22 4
BAR GRAPH
30
frequency
20
10
0
5
10
15
20
25
t minutes
4
Time t minutes 0 t lt 5 5 t lt 10 10 t lt 15 15 t lt 20 20 t lt 25
Number of students 10 16 30 22 4
FREQUENCY POLYGON
30
x
frequency
x
20
x
x
10
x
0
5
10
15
20
25
t minutes