(iii) Complete the following activity to prepare a table showing the necessary coordinates of points to draw a frequency polygon: Class 18-19 19-20 20-21 Class mark 18.5 19.5 21.5 Frequency 4 15 19 Coordinates of points (19.5, 13) (20.5, 15) (21.5, 19)
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Step 1
First, we need to collect the data for the frequency distribution. Let's assume we have the following data: | Class Interval | Frequency | |:--------------:|:---------:| | 0-10 | 5 | | 10-20 | 10 | | 20-30 | 15 Show more…
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