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Prof its of Usaha Tegas Company
80
The bar chart representation
Prof t (million RM) i 40 representation because the line
is converted to a line graph
60
graph is suitable for displaying data
collected over a certain period, that
is, the profit performance of Usaha
20
Tegas Company over a period of
0 six years.
2010 2011 2012 2013 2014 2015
Year
10
The stem-and-leaf plot shows the results of a survey on the pulse rates per minute of
patients treated at a community polyclinic. Convert the representation to a dot plot and
justify the conversion for this representation.
Pulse Rates Per Minute of Patients
Stem Leaf
4 2
5 5
6 5 6 6 6 7 8 8 8 8 9 9 9
7 0 1 2 7
8 9
9 0
Key: 4 | 2 means 42 beats per minute.
Pulse Rates Per Minute of the Patients
CHAPTER
12
40 50 60 70 80 90
Beats per minute
The stem-and-leaf plot is converted to a dot plot because both of these representations are
suitable for displaying numerical data distribution and at the same time retain the original
data values.
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Chapter 12
12 TB Math F1.indd 276 11/10/16 12:21 PM
