1. A sample was taken of 25 high school seniors who were planning to go to college. Each of the students was asked which of the following majors he or she intended to choose: business, economics, management information systems (MIS), behavioral sciences (BS), other. The responses of these students are as follows:

Economics MIS Economics Business Business
Business Business Other Other Other
BS BS MIS Other MIS
Other Business MIS Business Other
Economics MIS Other Other MIS

Construct the frequency distribution table for the above majors.

2. The following table gives the frequency distribution of the number of orders received each day during the past 40 days at the office of a mail-order company.

Number of Orders    Number of Days

  10-12                          3
  13-15                         14
  16-18                         18
  19-21                          5

Calculate the mean (show the steps)