Transcript Mean Median Mode and Range

Mean, Median, Mode,
and Range
SOL 6.19
Measures of Central Tendency
Circle the measures of central tendency below.
(Hint: There are only 3 measures of central
tendency.)
Mode
Mean
Range
Median
What’s an outlier?!
outpref. In a way that
surpasses, exceeds, or
goes beyond:
lie
outdistance.
verb. to be found or
located in a
particular area or
place: The fault lies
here.
-er
suff. One that
undergoes a
specified action:
broiler.
–nounoutlier
1. a person
or thing that lies
outside.
Find the outlier(s)
1. 12, 22, 40, 17, 29, 72, 38
2. 90, 80, 75, 7, 67, 82
3. 101, 210, 184, 18, 156, 989, 204
Matching!
Mean
Median
Middle
Mode
Range
Most
Average
Difference
Problem 1
Children
Andrew
Robin
Betty
Orlando
Amy
Ages
13
6
7
6
13
Mean = 9
Median = 7
Mode = 6 and 13
Range = 7
Problem 2
Homerooms
Moore
Ragland
McNeill
Pettus
Powell
McConahey
Crews
Clarke
Pizza Orders
13
7
17
19
7
15
11
7
Mean = 12
Median = 12
Mode = 7
Range = 12
Problem 3
Visitors to the Art Museum (thousands)
3
5
12
11
3
2
5
6
2
Mean = 5,000
Median = 4,000
Mode = 3,000
Range = 10,000
4
3
4
Problem 4
Snowfall in Inches
2
3
6
0
5
1
4
Mean
Median
Mode
Range
3 inches
3 inches
none
6 inches
Problem 5
• Quiz Grades
72
72
60
86
80
Mean
73
Median 72
Mode
72
Range
26
68
Summary of the Measures of
Central Tendency
Measures of Central
Tendency
Best used to describe data when…
Mean
The data has no outliers
Median
Mode
The data has outliers
The data has many
repeated numbers