Application of averages  Measures of Central Tendency
Application of averages
Basic concepts:
 Median and mode
 Mean
 Range and outliers
Related concepts:
 Influencing factors in data collection
 Data collection
 Probability
Lessons

1.
A school collected gifts from students to give to needy children in the community over the Christmas holidays. The following numbers of gifts were collected.
Grade
Total number of gifts collected
1
65
2
100
3
70
4
54
5
45
6
54
7
43

2.
The following table represents the sizes of winter boots that were sold last week.
Size
5
6
7
8
9
10
Number Sold
3
2
4
4
0
1