Sample A B 1 1 2 2 4 5 3 9 7 4 11 10 5 14 12
A
B
1
2
4
5
9
7
11
10
14
12
Sample A A-mean (A) B B-mean (B) Product 1 1 −6.8 2 −5.2 35.36 2 4 −3.8 5 −2.2 8.36 3 9 1.2 7 −0.2 −0.24 4 11 3.2 10 2.8 8.96 5 14 6.2 12 4.8 29.76 mean 7.8 7.2 Sum 82.2
Sample
A-mean (A)
B-mean (B)
Product
−6.8
−5.2
35.36
−3.8
−2.2
8.36
3
1.2
−0.2
−0.24
3.2
2.8
8.96
6.2
4.8
29.76
mean
7.8
7.2
Sum
82.2
Cov = 82.20 / (5 – 1) = 20.55
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