3.1

13 mean: 30.52 median: 31.3 mode: none

14 mean: 93.1 median: 87.9 mode: none

15 mean: 3670 median: 3830 mode: 4090 lbs per sq inch

16 mean: 266 median: 266 mode: 260

17

  1. The mean is greater than median because it is right skewed

  2. the mean is equal to the median because it is bell shaped

  3. The mean is less than the median because it is left skewed

18

  1. II

  2. IV

  3. III

  4. I

3.2

5 standard deviation: 6 variance: 36

6 standard deviation: 9 variance: 82

7 standard deviation: 4 variance: 16

8 standard deviation: 7.4 variance: 55.11

9 standard deviation: 14 Variance: 196

10 standard deviation: 3.6 Variance: 13

14 standard deviation: 8.4 Variance: 71