Measures of Center/Variability
Data Displays
Comparing Data
Mean Absolute Deviation
MISC. statistics questions
100
Find the mode for the set of data: 5, 4, 3, 6, 3, 7, 2, 8, 4, 6, 3, 7, 8
3
100
Create a dot plot to represent the number of fouls committed by each player.
4, 2, 2, 1, 1, 3, 5, 1, 5, 1, 2
100
Based on the dot plots, do those surveyed spend more time exercising or playing video games? 
They spend more time playing video games.
100
1, 2, 4, 6, 7
Find MAD of this data set
2
100
When would I choose to use the MEDIAN over the MEAN as a measure of center?
You would choose to use the median when a data set has a lot of outliers. The outliers greatly influence the mean.
200
Find the range for the set of data: 4, 7, 9, 2, 6, 3, 11, 4, 6, 3, 8, 7
9
200
Find the interquartile range for the box plot and explain how you found it.
The interquartile range is 5. You subtract Q1 (5) from Q3 (10) to get 5.
200
Which dot plot has a wider range?
Video games
200
Find the MAD of the following data. {85, 70, 100, 90, 60}
12.8
200
What is the largest continent?
Asia
300
Find the median for the set of data: 4, 8, 7, 3, 2, 9, 8, 5, 3, 8
6
300
The middle 50% of the data fell between which test scores?
Between 78% and 93%. (answers may vary slightly)
300
Which class had the more consistent performance on their test based on the box plots? Why?
2nd period was more consistent because they had both a smaller range and a smaller interquartile range.
300
What does the mean absolute deviation tell you about a data set?
The amount of variation in a data set
300
How many siblings does Ms. Weber have?
Bonus points if you get their names too
Extra bonus points if you know where they live
--> 2!!
--> Ethan and Sophie
--> Boston and Colorado :)
400
Find the mean for the set of data: 5, 8, 3, 5, 7, 2, 9, 8
5.875
400
Based on the histogram, which height range had the greatest frequency?
75-80 feet
400
Compare the prices from the two restaurants.
The Red Brick Grill has a wider range of prices. They also have the cheapest and most expensive prices.
400
What are the STEPS to finding the MEAN ABSOLUTE DEVIATION OF A DATA SET
1. Find the mean
2. Find the distance between each point and the mean
3. Find the average of the distances
400
Based on the spinners shown, what is the probability of spinning an even number on both spinners? Write your answer as a percentage.
50%
500
Find the mean for the set of data: 10, 12, 15, 21, 19, 20, 20, 18, 17, 21
17.3
500
How many people fell between the ages of 40-70? 
12 people
500
Who has a higher average?
Daniel
500
Amelie is comparing two data sets. Data set A has a mean absolute deviation of 4.5 and data set B has a mean absolute deviation of 9.9. What conclusion can Amelie make about the two data sets?
The data in set A is less spread out than the data in set B.
500
Name three different types of graphs that you have seen in this unit!
1. Dot plot
2. Histogram
3. Box plot/ box and whisker plot
4. Bar Graph