Question

question 2
id x y
1 6 2
2 1 4
3 -5 1
4 0 11
using the values in this table, calculate the following quantities: σxy =?
6
11
12
20

Explanation:

Step1: Calculate product for each pair

$6\times2 = 12$, $1\times4=4$, $- 5\times1=-5$, $0\times11 = 0$

Step2: Sum up products

$12 + 4-5+0=11$

Answer:

11