Mean
Median
Mode
Range
Outliers
100
What is Find the mean of the following: 78,78,78 ?
78
100
What is the median for the following: 49, 32, 67, 55, 58?
55
100
What is the mode of the following: 36, 27, 45, 23, 27?
27
100
What is the range of the following: 12, 56, 43, 23?
44
100

What is an outlier?

A number that is very different from the rest of the data set

200
What is the mean of the following: 68, 79, 74?
74
200
What is the median of the following: 36, 49, 32, 55, 21, 46?
41
200
What is the mode of the following: 14, 25, 64, 12, 64, 13, 14, 64?
64
200
What is the range of the following: 78, 98, 34, 24, 13?
85
200

Find the outlier in the data set: 

71, 76, 73, 3, 67, 64

3

300
What is the mean of the following: 78, 68, 72, 91?
77
300
What is the median of the following: 31, 27, 15, 31, 24, 13?
31
300
What is the mode of the following: 65, 76, 23, 43, 12, 65, 89, 23, 78, 23?
23
300
What is the range of the following: 65, 34, 89, 12, 34, 89, 43?
77
300

1. Name the outlier.

2. Would you remove the outlier in this situation?

Laura tracks the number of hours she plays video games on the computer each night this week. Her results are: 2.5, 2.0, 1.0, 2.5, 2.0, 15, 3.5

1. 15

2. No, she just chose to play more on Saturday. The outlier still make sense to the data set. 

400
What is the mean of the following: 78, 79, 82, 64?
76
400
What is the median for the following: 39.95, 41.75, 43.4, 40.5, 45.3?
41.75
400
What is the mode of the following: 78, 65, 45, 23, 32, 43, 56, 78, 98, 90, 12, 23, 78?
78
400
What is the range of the following: 67, 89, 34, 54, 12, 32, 9, 67, 65, 99?
90
400

For every soccer practice, Cam keeps track of the number of goals he makes in ten attempts. In the last 10 practices, he made the following number of goals:

2, 6, 8, 7, 9, 8, 6, 8

1. How does the mean change if Cam keeps in the outlier vs if Cam removes the outlier. 

1. If he keeps the outlier in his mean (average) is lower. 

500
What is the mean of of the following: 24, 21, 25, 18, 48?
27
500
What is the median of the following: 30, 24, 18, 35, 28, 24?
26
500
What is the mode of the following: 325, 432, 123, 789, 908, 123, 564, 786, 325, 432, 123?
123
500
What is the range of the following: 876, 145, 676, 34, 909, 678, 546, 345, 123?
875
500

The following times, in seconds, were recorded for a mouse to run through a maze. 

44, 12, 10, 11, 12, 13, 9

1. What is the outlier?

2. Should the outlier be removed when calculating?

1. 44

2. Yes, it does not make sense for the mouse to gain so much speed in one round. 

M
e
n
u