Statistics for Business: Decision Making and Analysis, 3rd Edition

You Do It

1. 43.

   1. 1. S = {blue, orange, green, yellow, red, brown}

      2. 0.37

      3. 0.84

   2. 1. S = {triples of three colors}

      2. ≈ 0.0138

      3. 0.13

      4. ≈ 0.561

2. 45.

   1. Assuming independence and that the caller believes the agent is foreign, ≈ 0.238

   2. ≈ 0.146

   3. 0.438

   4. ≈ 0.0000628

3. 47.

   1. ≈ 0.905

   2. 1 in 10,000

   3. 0.9. The events have such small individual probability that there's not much double-counting.

4. 49. ≈ 0.262

5. 51.

   1. 9/16. The necessary assumption of independence is questionable here.

   2. 0. None

6. 53.

   1. 169/365 ≈ 0.463

   2. India lowest, the United States highest

   3. 0.232

7. 55.

   1. 1/8

   2. Yes. The probability of three in a row is ≈ 0.00003.

   3. ≈ 0.266. Assume that the purchase amount is unrelated to the discount.

8. 57.

   1. The plot does not indicate anything out of the ordinary, as if independent events.

   2. One ...