Chapter 2.1, Problem 19P

For Problems 15-20, use the specified 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 symmetric, bimodal, skewed left, or skewed right.

(f) Draw an Ogive.

(g) Interpretation Discuss some of the features about the data that the graphs reveal, Consider items such as data range, location of the middle half of the data, unusual values, outliers, etc.

Education: College Enrollment What percent of undergraduate enrollment in coed colleges and universities in the United States is male? A random sample of 50 such institutionsgive thefollowing data (Source: USA Today College Guide).

Percent Males Enrolled in Coed Universities and Colleges

31	39	53	47	40	49	53	47
45	26	39	79	45	50	36	49
45	49	43	48	54	50	43	42
42	35	49	45	42	58	42	55
45	71	50	57	49	50	45	46
53	48	53	37	56	63	41	41
51	48

Use five classes.