A corporation with new positions to fill was anxious to interview business majors on the campuses of twenty large Midwestern universities. The table shows the number of busi- ness majors from these campuses requesting interviews with the corporation. NUMBER OF STUDENTS NUMBER OF CAMPUSES

(a) Draw the histogram.

(b) Find the relative frequencies. 5-10.5 10.5-20.5 20.5-30.5 30.5-40.5 2 9 5

(c) Find the cumulative frequencies.

(d) Find the cumulative relative frequencies.

(e) Estimate the population mean number of students per campus requesting interviews.

(f) Estimate the population variance number of students per campus requesting interviews. (g) Estimate the population standard deviation, (h) Estimate the population median. (i) Estimate the interquartile range. (i) Which is the modal class?