Question: 11 A USA Today article titled “Electronic world swallows up kids’ time, study finds” (March 10, 2005) presented the following chart depicting the average amount of time 8- to 18-year-olds spend daily on various activities. The Kaiser Family Foundation had conducted the study of 2000 children in grades 3 through 12.

a. What is the random variable involved in this study?

b. Is the random variable discrete or continuous? Explain.