Critical Thinking The following ogives come from different distributions of 50 whole numbers between 1 and 60.

Labels on each point give the cumulative frequency and the cumulative percentage of data.

(a) In which distribution does the most data fall below 20.5?

(b) In which distribution does the most data fall below 40.5?

(c) In which distribution does the amount of data below 20.5 most closely match that above 30.5?

(d) Which distribution seems to be skewed right? Skewed left? Mound-shaped?
For Problems 15–20, use the specifi ed number of classes to do the following.

(a) Find the class width.

(b) Make a frequency table showing class limits, class boundaries, midpoints, frequencies, relative frequencies, and cumulative frequencies.

(c) Draw a histogram.

(d) Draw a relative-frequency histogram.

(e) Categorize the basic distribution shape as uniform, mound-shaped symmetrical, bimodal, skewed left, or skewed right.

(f) Draw an ogive.