Stem and Leaf Homework

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Back-to-Back Stem and Leaf Diagrams 1
Question1: For each of the data sets, draw a back-to-back stem and leaf
diagram, and from them find the median and range for the data.
The table shows Year 9 test results, out of 100
Boys 19
53
47
81
38
61
67
73
79
49
52
58
62
65
Girls 85
24
32
36
45
49
56
71
80
51
49
55
47
50
Key:
|3|5 represents 35
3|2| represents 23
Girls (Unsorted)
Boys (Unsorted)
0
1
2
3
4
5
6
7
8
9
Girls (sorted)
Boys (sorted)
0
1
2
3
4
5
6
7
8
9
Median for girls =
Range for girls =
IQR for girls =
Median for boys =
Range for boys
IQR for boys =
What do these results tell you? Remember to include mathematical
terms.
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