Case Study: Video Game Sales.

Use the 30 top-selling video games in Table 3 (page 8) for Exercises 51–54.

Use the Simple Random Sample applet for Exercise 51.

Question 1.147

51. Random Sampling.

  1. Generate a random sample of size 5 video games.
  2. Before you generate another random sample of 5 video games, is it likely that it will be the same as in (a)? Why or why not?
  3. Think of your favorite video game from Table 3. Before we generate another random sample, is there any way of foretelling whether your game will be in the random sample? Explain.
  4. Go ahead and generate another random sample of 5 video games. Was it the same as the first sample? Was your game in the sample?

1.3.51

(a) Answers will vary (b) No. Every possible sample of 5 video games has the same chance of being selected. (c) No. Every possible sample of 5 video games has the same chance of being selected. Some of the samples will contain the video game and some won't. (d) Answers will vary; answers will vary