introduction to statistics

5.5km run
we run from wambana to the end of the jetty for this run. the following is a dot plot of times for our class. all times for our class. all times an in minutes rounded up.

23. x
24. xx
25. x
26. x
27. x
28.
29. xxx
30. xx
31. x
32. x
33. xx
34. xx
35. xx
36.
37.
38.
39. xx
40.
41.
42.
43.
44.
45. x
46.
47.
48.
49. x

fastest= 23 mins
slowest= 49 mins
range of variation = 26 mins
mode (most common time)= 29 mins
median (middle)= 32 mins
mean (average)= 32 2/23mins
Q1 (first quartile)= 28 mins
Q3 (third quartile)= 35.5mins
IQR (inter quartile range or variation of time for middle 50%)= 7.5 mins

5.5km run: best time

all times in minutes, rounded up

w2:27, 27, 27, 28, 29, 36
w3: 23, 23, 26, 27,27, 31
w4: 22, 24, 27,33, 35
w5: 22, 26, 27, 33,40

low high range mode medium mean Q1 Q3 IQR
w5 22 40 9 - 27 29.5 24 36.5 12.5
all 22 40 8 27 27 27 24 31 7

22.xx
23.xx
24.xx
25.
26.xx
27.xxxxxxx
28.x
29.x
30.
31.x
32.x
33.x
34.
35.x
36.x
37.
38.
39.
40.x

my assistance in this statistic was the basically the same in my wardli most of us were 50% in the running except for two people. one finished first and the second came last. i am in the middle with 27 minutes. but there are seven people including me in the 50% mark and that means we are average.