a. Obtain a relative-frequency distribution for the classification (class-level) data.
b. Using your answer from part (a), determine the probability that a randomly selected UWEC undergraduate student is a freshman.
c. Consider the experiment of selecting a UWEC undergraduate student at random and observing the classification of the student obtained. Simulate that experiment 1000 times.
d. Referring to the simulation performed in part (c), in approximately what percentage of the 1000 experiments would you expect a freshman to be selected? Compare that percentage with the actual percentage of the 1000 experiments in which a freshman was selected.
e. Repeat parts (b)-(d) for sophomores; for juniors; for seniors.
Recall from Chapter 1 (see page 34) that the Focus database and Focus sample contain information on the undergraduate students at the University of Wisconsin-Eau Claire (UWEC). Now would be a good time for you to review the discussion about these data sets. The following problems are designed for use with the entire Focus database (Focus). If your statistical software package won't accommodate the entire Focus database, use the Focus sample (Focus Sample) instead. Of course, in that case, your results