Vocabulary
Mean, Median, Mode, & Range
Measure of Variability: MAD and IQR
Box and Whisker Plots
Which is best?
100
The difference between the third and first quartiles
IQR- Interquartile Range
100
The middle number in a data set is what?
The median.
100
Find the MAD for the following data:
6, 8, 3, 2, 6
2
100
How many quartiles is a box and whisker plot broken into?
4 quartiles
100
What center of variability goes with mean?
MAD (mean absolute deviation)
200
Finding the mean of all absolute deviations
MAD- Mean Absolute Deviation
200
What is the Mode of this data set?
3, 5, 2, 2, 5, 3, 3, 4, 1, 6
3
200
Find the IQR for the following:
5, 7, 5, 1, 1, 9, 4, 5, 3, 4, 6
3
200
What is the first thing you do when making a box and whisker plot?
List the numbers in the data set from least to greatest.
200
What center of variability goes with median?
IQR (interquartile range)
300
How data values are arranged
Data Distribution
300
What is the range of this data set:
23, 42, 35, 26, 38, 40
Range: 19
300
Find the Mean Absolute Deviation of this data set:
12, 13, 14, 12, 11, 10
MAD: 1
300
What is the Median of this box plot?
What is the range?
What is the IQR of the data set?
Median: 6
Range:8
IQR:5
300
Would you use mean or median as the best measure of center for the following data: 1, 2, 3, 5, 4, 6, 5, 2
Mean
400
The absolute value of the difference between a value and the mean
Absolute Deviation
400
Find the median of this data set:
23, 42, 35, 26, 38, 40
Median: 36.5
400
What is the IQR of this data set?
68, 66, 64, 64, 65, 70, 68
IQR: 4
400
Find these values for the data set:
7, 2, 8, 4, 5, 6, 1, 3, 9
Min, Max, Median, Q1, & Q3
Min: 1, Max: 9, Median: 5, Q1: 2.5, Q3: 7.5
400
Would you use mean or median as the best measure of center for the following data:
12, 15, 59, 13, 15, 18
Median
There is an outlier
500
Data value that is very different from other values
Outlier
500
Find the mean of this data set:
23, 42, 35, 26, 38, 40
Mean: 34
500
Find the MAD of this data set:
90, 75, 85, 100, 80
MAD: 7.2
500
Find these values for the data set and create a box and whisker plot:
Winning Scores: 33, 21, 37, 37, 41, 34, 35, 40, 38
Min, Max, Median, Q1, & Q3
Min: 21, Max: 41, Median: 37, Q1: 33.5, Q3: 39
500
Use this data set to determine what measure of variability is most appropriate.
6, 9, 13, 8, 12, 25, 10
MAD or IQR?
IQR, because there is an outlier in the data set.