Mean of Grouped Data

1
Mean of Grouped Data

• OCR Stage 6

2
Mean of Discrete data
Mean 49 25 1.96 children per house
0 x 6 0
1 x 4 4
2 x 5 10
3 x 7 21
4 x 1 4
5 x 2 10
49
25
3
Mean of Continuous data
Mean 11 132.5 65 171.3cm
Height of the AVERAGE person
157.5
157.5 x 2 315
162.5
162.5 x 6 975
167.5
167.5 x 18 3015
172.5
172.5 x 25 4312.5
177.5
177.5 x 9 1597.5
182.5
182.5 x 4 730
187.5
187.5 x 1 187.5
11132.5
65