Question

correlation coefficient
determine r for these values
X Y
24 1.5
61 3.5
30 1.7
48 2.7
60 3.4
32 1.6
19 1.2
22 1.3
41 2.2
46 2.7

Answer 1

\[r=\frac{ \sum dx dy-\frac{ (\sum dx)( \sum dy ) }{ n } }{ \sqrt{\sum dx^2-\frac{ (\sum dx )^2 }{ n }}\sqrt{\sum dy^2-\frac{ (\sum dy)^2 }{ n }} }\]

Answer 2

here n=10

Answer 3

Do you have a spreadsheet?