Answer:
1
set up a frequency distribution table.
2
find the frequency for each class interval.
3
locate the endpoint for each class interval.
4
calculate the cumulative frequency by adding the numbers in the Frequency column.
5
record all results in the table.
Determine the class boundaries by subtracting 0.5 from the lower class limit and by adding 0.5 to the upper class limit. Draw a tally mark next to each class for each value that is contained within that class. Count the tally marks to determine the frequency of each class.
Class Interval = Upper-Class limit – Lower class limit. In statistics, the data is arranged into different classes and the width of such class is called class interval.
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