Question

Draw the frequency polygon for these data using an initial class boundary of 16.5, an ending class boundary of 41.5, and 5 classes of equal width.

Answer 1

To construct a frequency polygon, examine the data and decide on the intervals and interval size for both the x-axis and y-axis. Plot the data points and draw line segments to connect them.

Step-by-step explanation:

To construct a frequency polygon, first examine the data and decide on the number of intervals and resulting interval size, for both the x-axis and y-axis. The x-axis will show the lower and upper bound for each interval, containing the data values, whereas the y-axis will represent the frequencies of the values. Each data point represents the frequency for each interval.

For example, if an interval has three data values in it, the frequency polygon will show a 3 at the upper endpoint of that interval. After choosing the appropriate intervals, begin plotting the data points. After all the points are plotted, draw line segments to connect them.