For the following description of data, identify who and what was measured and when, where, why, and how it was measured. Then specify whether each variable is categorical or quantitative. A survey of calculators in a statistics workshop attended by students and staff at a large university recorded the brand, country of origin, type of calculator (graphing, 4-function, and so on), and age. Who was measured? A, B, C or D? A. The students and staff at a statistics workshop B. The calculators C. The students and staff of a certain university D. This information is not given. EXPLAIN