For the following description of data, identify the W's (who and what was measured and when, where, why, and how it was measured), name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they were not provided).
Upper A poll of students in a large Microeconomics class at a graduate school in the northeastern United States asked them to report their total personal investment in the stock market ($), total number of shares of stocks currently held, total invested in mutual funds ($), and the name of each mutual fund in which they have invested. The data were used in the aggregate for classroom illustrations.