Measures of Variation
What is the range in the data set 14, 16, 18, 24, 19, 15, 13.
11
What is the 1st quartile in the data set 14, 16, 18, 24, 19, 15, 13?
14
3
What are the 5 values that are graphed on a box and whisker plot?
Minimum, 1st Q, Median, 3rd Q, and Maximum
Can you determine the median from a box-and-whisker plot?
yes
What is the median in the data set 29, 27, 24, 28, 30, 51, 28?
28
What is the 2nd quartile in the data set 14, 16, 18, 24, 19, 15, 13?
16
2.6
What extends from each quartile to the min and max on a box plot?
Whiskers
Can you determine the mean from a box plot?
No
What is the range in the data set 29, 27, 24, 28, 30, 51, 28?
27
What is the 3rd quartile in the data set 14, 16, 18, 24, 19, 15, 13?
19
2.9
Where is the box drawn on a box-and-whisker plot?
Around the 1st and 3rd quartiles.
Create a box plot from the following numbers.
13, 25, 15, 23, 33, 40, 10, 25,
See teacher
What is the median in the data set 132, 116, 108, 113, 126, 120, 131, 112, 126?
120
What percent of the numbers are greater then 19 from the set 14, 16, 18, 24, 19, 15, 13 if you use a box plot?
25%
Find the MAD 44 57 59 60 80
8
What 5 values would you use to construct a box-and-whisker plot for the data set 4, 7, 5, 3, 9, 6, 4?
Minimum = 3
1st Q = 4
Median = 5
3rd Q = 7
Maximum = 9
Create a box plot with the following data.
25, 12, 25, 12, 7, 35, 39, 40, 23,
See teacher
What is the mean in the data set 58, 42, 36, 24, 40?
40
What percent of the data is between 14 and 19 in the data set 14, 16, 18, 24, 19, 15, 13 if you make a box plot?
50%
18
What 5 values would you need to construct a box-and-whisker plot for the data set 39, 41, 30, 14, 44, 40, 48, 39, 40, 36?
Minimum = 14
1st Q = 36
Median = 39.5
3rd Q = 41
Maximum = 48
Create a box plot from the following set.
5, 12, 25, 17, 5, 22, 36, 58, 45, 38, 24, 12,
See teacher