The following frequency distribution reports the number of dollars spent for a group of people during last week.
Dollars Frequency Relative Frequency Midpoint Cumulative Frequency
360 up to 420 28
420 up to 480 24
480 up to 540 16
540 up to 600 8
600 up to 660 16
660 up to 720 4
(a) How many people participate in the study?
(b) Calculate the Relative Frequency and enter the results in the above table.
(c) Calculate the Midpoint for each class and enter the results in the above table.
(d) Calculate the Cumulative Frequency and enter the results in the above table.
(e) Construct a Histogram.
(f) Construct a Frequency Polygon.
(g) Construct a Cumulative Frequency Polygon.