Peter Weill's produced a study that identified the 4 main categories that make up a company's IT portfolio: the IT infrastructure, transactional systems, informational systems, and strategic systems. Weill's research shows that most companies spend a majority of their IT portfolio on the 1. and the least amount of money is spent on the 2. . A company that is seeking to be highly agile should spend more money on the 3. to provide a nimble platform and less money on the 4. which tends to lock in current business processes.

The food services division of cedar river amusement park inc. is studying the amount families who visit the amusement park spend per day on food and drink. a sample of 40 families who visited the park yesterday revealed they spent the following amounts: see worksheet 1 for data and answer the following questions: a. organize the data into a frequency distribution, using seven classes and 15 as the lower limit of the first class. what class interval did you select? b. what percent of families spent less than $45? c. what percent of families spent $55 or more? d. how many families spent from $65 to 74.99?