Answer
A frequency distribution, using 6 classes is shown in the table below.
The figure below shows the histogram, frequency polygon, and an ogive for the data, using relative frequencies.
The shape of the histogram can be described as nearly symmetric and slightly right skewed.
Work Step by Step
Data Range: 57-12=45
Number of points: 40
Define class limits as shown in the table above.
Counts in each of the 6 classes are listed in the table.
Calculate the relative frequencies.
Calculate the cumulative frequencies.
