MEAN, MEDIAN, MODE, RANGE

DEFINITIONS

100

The difference between the largest and the smallest values

range

200

The value that occurs most often

mode

300

The middle value in a list of values.  If there are 2 middles, we add them and divide in half. 

What is median?

400

Add up the set of numbers and divide by the total number of values

What is mean?

500

Another name for mean is this

What is average?

Find the Mean

100

4, 2, 1, 1

2

200

10, 2

6

300

Messi's team scored this many points the last few games:  2, 1, 3, 0, 4.  What is their average/mean?

2

400

3, 4

3.5

500

1,1,1,1,1,1,1,1

1

Find the Median

100

5, 7, 6, 1, 3

5

200

0, 20, 14, 14, 30, 16, 2

14

300

Ron sold 15 raffle tickets, Jan sold 35, Claudia sold 23, Nathan sold 47, and Erin sold 23, What was the median number of tickets sold?

23 tickets

400

0, 15, 4, 36, 6, 10, 2, 4

5

500

59, 18, 24, 48, 31, 12

32.5

Find the Mode

100

13, 18, 13, 14, 13, 16, 14, 21, 13

13

200

10, 9, 7, 8, 6, 4, 0

there is no mode

300

12, 13, 13, 15, 10, 11, 11, 11, 10, 9

11

400

88, 82, 81, 89, 77, 95, 89, 90, 81, 75

81 and 89

500

56, 41, 85, 71, 83, 18, 68, 17, 68, 63

68

Find the Range

100

13, 18, 13, 14, 13, 16, 14, 21, 13

What is 8?

200

12, 13, 13, 15, 10, 11, 11, 11, 10, 9

What is 6?

300

12, 18, 23, 256, 15, 2, 30

What is 254?

400

7, 7, 7, 7, 7, 7

0

500

110, 250, 335, 15, 11, 85, 320

309