Question: The following table contains the marks in two tests for each of 8 individuals Student Test 1 Test 2 1 2 9 2 16 20

The following table contains the marks in two tests for each of 8 individuals

Student Test 1 Test 2

1 2 9

2 16 20

3 8 0

4 18 11

5 10 13

6 4 4

7 10 7

8 12 16

Show that the sample covariance matrix is S=1

8

208 144

144 292

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