hw3_skeleton

3.1

• 4. The mean is greater than the median because there are large observations in the right tail which pull the mean to the right.
• 5. The median is located between the 5000th and 5001st values.
• 6. False
• 7. 11
• 8. 82
• 9. 9
• 10. 15
• 11. 218,469,636/82,566= $2646 per ticket
• 12. 32

3.2

• 1. zero
• 2. mean, mean, spread
• 3. True
• 5. standard deviation: 6, sample variance: 36
• 6. standard deviation: 10, sample variance: 100
• 7. standard deviation: 4, population variance: 16
• 8. standard deviation: 8, population variance: 64

• 1. III

  2. I

  3. IV

  4. II