MATH / REGRESSION
Fit a least-squares line from count and aggregate paired-data sums. Review the symbolic equation, substituted values, interpretation boundary, and result in one guided workspace.
Use boundary
Fit a least-squares line from count and aggregate paired-data sums. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
b_1=[n sum(xy)-sum(x)sum(y)]/[n sum(x^2)-(sum x)^2]
What you provide
What you receive
Use boundary
Interpret the result only when the sampling design, independence, distribution, and measurement assumptions fit the data.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors