i
xi
1
50.64
1.97
2
49.11
8.60
3
45.41
43.99
4
43.91
66.14
5
47.55
20.18
6
52.22
0.03
7
56.86
23.21
8
51.17
0.76
9
50.62
2.02
10
57.40
28.70
11
53.77
2.98
12
54.28
5.01
13
60.00
63.32
14
62.58
111.04
15
48.53
12.34
16
46.99
25.53
17
50.67
1.88
18
51.14
0.81
19
49.59
6.01
20
58.41
40.55
Total:
1040.85
Variance:
24.48
Standard Deviation:
4.95
