Correlation
Variance
Variability between bivariate data (two variables)
Sxx shows the variance of the variable x
Sxx shows the variance of the variable x
Product Moment Correlation Coefficient
The PMCC is given symbol 'r'
This gives a coefficient for the correlation.
From -1 to 1
This enables you to see how strong a correlation there is - the further from 0 - the stronger the correlation
This gives a coefficient for the correlation.
From -1 to 1
This enables you to see how strong a correlation there is - the further from 0 - the stronger the correlation
Coding
The PMCC is not affected by coding