DOT PLOTS
DATA SETS
STEM-AND-LEAF
BOX-AND-WHISKER
MISC.
100
What is the shape of distribution for dot plot C?
Skewed Right
100
Find the mode. 4, 5, 6, 4, 4, 5, 3, 5
4 and 5
100
What is the mode for the data in stem-and-leaf plot I?
68
100
Find the MEDIAN of box-and-whisker plot G.
10
100
Find the range. 5, 7, 10, 2, 1, 7, 5
9
200
What is the shape of distribution for dot plot E?
Symmetric
200
Find the mean. 20, 4, 17, 8, 12, 9, 5, 20, 13
108/9=12
200
How many data values are in stem-and-leaf plot I?
19
200
What is the shape of distribution for box-and-whisker plot G?
Skewed left
200
Is this a statistical question? What is your shoe size?
Yes
300
What is the RANGE and MODE for the data in dot plot B?
Range-12 Mode-16 and 20
300
Find the median. 3, 5, 7, 9, 11, 3, 8
7
300
What is the range in stem-and-leaf plot I?
110-68=42
300
What is the IQR of box-and-whisker plot H?
230-120=110
300
Find the 1st and 3rd quartiles. 40, 33, 37, 54, 41, 34, 27, 39, 35
1st Q = 33.5 3rd Q = 40.5
400
Find the MEAN of the data in dot plot A
1225/16=76.5625
400
Find the median. 5, 10, 16, 85, 90, 94
50.5 (16+85)/2
400
What is the mean of the data in stem-and-leaf plot I? Round to the nearest tenth if needed.
1533/19=80.7
400
What percent of car lots have 120-230 cars? (Use box-and-whisker plot H)
50%
400
Find the mean absolute deviation of 2, 5, 8, 10, 3, 2, 1, 1
2.75 (mean: 32/8=4; differences 22/8=2.75)
500
Find the MEDIAN of the data in dot plot B.
18
500
You have a skewed set of data. Which measures of center and variation would be most reliable? *mean *median *IQR *MAD
Median & M.A.D.
500
What is the MEDIAN of the data in stem-and-leaf plot I?
76
500
What fraction of tents have 13 or less cocoons? (Use box-and-whisker plot G)
3/4
500
What does M.A.D. stand for?
Mean Absolute Deviation
M
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