Exercise Answers: Module 28

Mean, Median, Mode

  1. $ 3.35
  2. $ 3.11
  3. $ 256,000
  4. $ 250,000
  5. $ 338,000
  6. $ 275,000
  7. the median is more representative because the mean is higher than five of the six home values.
  8. AT&T Mobility
  9. Samoas and Thin Mints
  10. 12.2 games
  11. 12 games
  12. 12 games
  13. they all represent the data fairly well; 12 wins represents a typical Patriots season.
  14. 6.8 games
  15. 7 games
  16. 6 games
  17. they all represent the data fairly well; 6 or 7 wins represents a typical Bills season.
  18. 98.2 grams; the mean doesn’t seem to represent a typical clementine because there is a group of smaller ones (from 82 to 94 grams) and a group of larger ones (from 102 to 109 grams) with none in the middle.
  19. 94 grams; for the same reason, the median doesn’t represent a typical clementine, but you could say it helps split the clementines into a lighter group and a heavier group.
  20. there is no mode because too many values appear twice.
  21. 98.3 grams; this is a small increase over the previous mean.
  22. 94 grams; the median does not change when one of the highest numbers increases.
  23. 109 grams; you might say it represents the mass of a typical large clementine, but it doesn’t represent the entire group.

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