3.1

13 30.52, 31.3,

14 93.1, 87.9

15 3670 P/PSI, 3830 P/PSI 4090 P/PSI

16 266, 266, 260

17

  1. mean is greater than median

  2. mean median mode =

  3. mean is less than median

3.2

5 sample mean = 11 standard deviation = 6

6 SM = 82 SD = 10

7 SM = 9 SD = 4

8 SM = 15 SD= 8

9 SM = 30 SD = 14

10 SM = 12 SD = 5

14 Range = 71 SD = 8.4

24

  1. 6 seconds

  2. It is belled shape so we can use the emprical rule

  3. 95%

  4. 93.2%

  5. 16%

  6. 12.2%