In Exercises 1 and 2, use the data set, which represents the student-to-faculty

ratios for 20 public colleges. (Source: Kiplinger)

13 15 15 8 16 20 28 19 18 15

21 23 30 17 10 16 15 16 20 15

1. Construct a frequency distribution for the data set using five classes. Include

class limits, midpoints, boundaries, frequencies, relative frequencies, and

cumulative frequencies.

2. Construct a relative frequency histogram using the frequency distribution in

Exercise 1. Then determine which class has the greatest relative frequency

and which has the least relative frequency.

I need help finding the relative frequency and with number 2