Sub:Statistics Topic: Statistical Graphics
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Question:
Construction of Stem and leaf plot diagram
The data below show the average daily high temperature for Chicago, Illinois,
for twelve recent spring and summer months. Construct a stem-and –leaf
diagram for the data.
64, 61, 57, 68, 78, 75, 50, 83, 71, 58, 62, 80
Solution:
A stem-and-leaf plot shows the shape and distribution of data.
Since the values given in the problem are two digit numbers, the tens digit has to
be taken as the stem and the units digit has to be taken as the leaf. Thus, by
separating each number into a stem and a leaf, the Stem – and – Leaf plot has
been constructed for the given data and is presented below:
Stem-and-Leaf Display: Temperature
Stem
Leaf
5
0, 7, 8
6
1, 2, 4 8
7
1, 5, 8
8
0, 3
Sub:Statistics Topic: Statistical Graphics
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**Leaf unit = 1
& Stem unit = 10
The histogram for the above Stem-and-leaf plot has been drawn and is shown
below:
** End of the Solution **
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