The chancellor of a major university was concerned about alcohol abuse on her campus and wanted to find out the proportion of students at her university who visited campus bars on the weekend before the final exam week. Her assistant took a random sample of 250 students. The total number of students in the sample who visited campus bars on the weekend before the final exam week is an example of (3.3分)3.3 分A、 a continuous random variable.B、a discrete random variable.C、a parameter. D、 a categorical random variable.What is the attention-getter?Purpose: get the reader’s attention Share a short story OR Share an interesting fact OR Start with an interesting quote (still have to explain it)Background information: Share the background of the topic OR Briefly discuss both sides of the argumentThesis: Specific Makes an argument Let’s the reader know what you will talk about