Finding the Measures

Definition

100

What is the mode?

The number that appears the most 

200

What is the mean?

The average of a set of numbers.

300

What is median?

The middle number of a data set.

400

What is IQR?

The difference between Q3 and Q1. 

500

What is range?

The difference between the biggest number and smallest number. 

Mean

100

Find the mean: 4, 8, 6, 5, 3

5.2

200

Find the mean: 10, 20, 30, 40, 50 

30

300

Find the mean: 3.5, 7.8, 2.1, 9.6 

5.75

400

Find the mean: 15, 23, 29, 12, 25

20.8

500

Find the mean: 45, 67, 89, 23, 56,78

59.67

Median/Mode

100

Find the mode: 4, 6, 2, 4, 7, 4, 2

4

200

Find the median: 2, 4, 6, 8, 10 

6

300

Find the mode: 1, 3, 3, 3, 6, 6, 9, 9, 9

3 & 9

400

Find the median: 14, 18, 20, 22, 24, 30 

21

500

Find the mode: 5, 10, 10, 15, 15, 15, 30, 35, 22, 44, 20, 15

15

IQR

100

Find the IQR: 2, 4, 7, 8, 10, 12, 14, 15, 18, 20 

8

200

Fin the IQR: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21 

12

300

Find the IQR: 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 

35

400

Find the IQR: 5, 9, 12, 15, 18, 22, 25, 28, 30, 34, 37, 40 

17.5

500

Find the IQR: 3, 7, 8, 9, 15, 21, 24, 25, 29, 32, 35, 38, 40, 42 

26

Challenge

100

Find the mean: 12, 25, 37, 44, 58, 63, 79, 82, 91, 103, 115, 123, 130, 142

78.86

200

Find the median: 17, 22, 34, 41, 56, 61, 72, 85, 93, 101, 112, 129, 137

72

300

Find the median: 6, 14, 27, 32, 45, 49, 57, 63, 71, 78, 84, 92, 100, 115, 123 

63

400

Find the mean: 3, 8, 15, 21, 27, 35, 40, 48, 56, 63, 72, 80, 89, 95, 104 

50.4

500

Find the IQR: 14, 18, 21, 24, 27, 32, 35, 38, 41, 45, 48, 50, 53, 56, 60, 63, 66, 70, 73, 76 

32