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Forums › ACCA Forums › ACCA SBL Strategic Business Leader Forums › linear regression : how to calculate the coefficient of correlation (r) ?
linear regression model :
y=ax+b
to test the relationship we need to calculate the coefficient of correlation r
how to calculat r ?
I guess this is more of a statistics question rather than business analysis.
Check out the following link;
Yep, it is a statistic question but I remembered that the fomula was stated on text book as well.
Anw, you can check the formula on the following link:
https://mathbits.com/mathbits/tisection/statistics2/correlation.htm