Mean, Median, Mode, Range, IQR & Mad

Finding mean

100

How to find mean?

add all numbers together and divided by the number of value in the data set

200

Find the mean: 10, 7 , 13, 10, 8

9.6

300

Find the Mean: 110, 114, 104, 108, 106

108.4

400

find mean: 32, 23, 22, 33, 17, 14

23.5

500

Find the Mean: 15, 17, 15, 17, 21, 17, 15, 23, 20, 18

215.8

Finding IQR

100

Find the IQR. 35, 56, 34, 44, 52, 12, 34, 45

IQR = 14.5

200

Find the IQR. 24, 34, 32, 16, 45, 38, 28

IQR = 14

300

Define:IQR

The upper quartile (Q3) minus the lower quartile (Q1).

400

Find the IQR. 86, 24, 65, 65, 24, 24

IQR = 41

500

Find the IQR. 32, 23, 22, 33, 33, 23, 32, 23, 22

IQR = 10

Find Range

100

35,36,34,44,52,12,34,45

40

200

24,34,32,16,45,38,28

22

300

86,24,65,65,24,24

62

400

86,24,23,65,15,34

71

500

Give me an example for why you would use : Range

Answers will Vary

Finding Median

100

Find the Median 35, 56, 34, 44, 52, 12, 34, 45

Median = 39.5 

200

Find the Median 24, 34, 32, 16, 45, 38, 28

Median = 32 

300

Find the Median 86, 24, 65, 65, 24, 24

Median = 44.5 

400

Find the Median 32, 23, 22, 33, 33, 23, 32, 23, 22

Median = 23

500

Define: Median 

Median : Middle Number

Which one would I use?

100

You want to find the average height of a basketball team. Which central tendency would you use?

Mean

200

To determine the difference between the smallest and biggest person on a basketball team. Which central tendency would you use?

Range

300

You have a range of answers from a particular survey. You are trying to figure out the middle of the data. Which central tendency would you use?

Median

400

You survey a group of people asking them what their favorite food is. Which central tendency would you use to determine the most popular food?

Mode

500

You are trying to figure out how close together a certain set of data is, Which central tendency would you use?

MAD