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 institutions give the following data

(Source: USA Today College Guide).

Percent of 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.

For Problems use the specified number of classes to do the following.

(a) Find the class width.