Mean
Median
Mode
Best Measure of Center
All subjects
100
What is the mean of a data set and how is it calculated?
The average, or all the numbers added up then divided by the amount of numbers.
100
What is the median and how is it calculated?
The middle number. Put the data in order from least to greatest and find middle. If 2 middle numbers, add them and divide by 2.
100
What is the mode as a measure of center?
The most often number in a set of numbers OR when asking a question.
100

If you are asked your favorite diner, which measure of center should be used?

mean (because how much it costs)

100
What is the mode? 13,14,1,7,25,23,14,17,14,24,35,14
14
200
If a data point is 5, which data point would make 6 the mean?
7 because 5 + 7 = 12 and 12 divided by 2 = 6
200
What is the Median? 4,9,13,14,19,27,29
14
200
What is the Mode? 15,20,5,23,14,13,20
20
200
What measure of center should be used with this data set? 3, 5, 2, 4, 87, 3
median because of the outlier
200
How do you find the balance point of data?
cross off from left to right and move towards center
300
What kind of data do you use mean as the best measure of center?
Data that is close together.
300

What kinds of data do you use the median as the best measure of center?

Data with an outlier.


300
What kind of data is mode the best measure of center for?
Data where you are asked a question.
300
What measure of center should be used on this data set? 54, 55, 56, 57, 54, 53
mean because the data is close together
300
Suppose the balance point of a data set is 4. If I add a 6 to the data set, what else do I need to add to keep the balance point at 4?
2
400
What is the Mean? 18,8,26,5,32
17.8
400
What is the Median? 2,6,15,17,18,25,29
17
400
What is the Mode? 15,13,14,27,32,12,15,15,27,15
15
400
What measure of center should be used on this data set? Running times at a track meet for the 100 dash - some runners are MUCH faster than most of the others
median because those runners are outliers
400
If the balance point of a data set is 5, what ONE point can I add to keep the balance point at 5?
5
500
What is the Mean? 10,14,15,17,18,24
16.333
500
What is the Median? 13,15,16,18,27,29
17
500
What is the Mode? 14,16,13,12,15,24,27,46,37,29,36,15,12,27,12,27,32,12
12
500
What measure of center would be used if a class was asked their favorite color of crayon?
mode
500

Find the balance point: 1 2 3 4 5

3

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