hw3_skeleton

3.1

• 4. The mean, because the median is resistant to change. extremely high values or extremely low values would change the mean, pulling it either left or right, however, they wouldn’t necessarilly change the median.
• 5. at 5,000
• 6. False, a data set can be bimodal, or have no mode.
• 7. 11
• 8. 82
• 9. 9
• 10. 15
• 11. $2,646
• 12. 32

3.2

• 1. zero
• 2. the mean, the mean, spread.
• 3. True
• 5. s^2= 36, s=6
• 6. s^2=100, s=25
• 7. σ^2= 16, σ= 4
• 8. σ^2= 64, σ= 8

• 1. III

  2. I

  3. IV

  4. II