In a laboratory experiment on correlation research study the equation of the two regression lines were found to be 2x – y + 1 = 0 and 3x – 2y + 7 = 0. Find the means of X and Y. Also work out the values of the regression coefficient and correlation between the two variables X and Y.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.