4 Families at a school in Manchester were surveyed, and the number of children in each family was recorded. The results of the survey are shown alongside.
Number of children
Frequency
1
5
2
28
3
15
4
8
5
2
6
1
*Total*
59
a. Calculate the:
- mean
- mode
- median.
b. The average British family has 2.075 children. How does this school compare to the national average?
c. Describe the skewness of the data.
d. How has the skewness of the data affected the measures of the centre of the data set?