Coefficient of Variance 4.27 Two salesmen selling the same product show the following results over a long period of time: Salesman X Salesman Y Average sales volume per month () Standard deviation 30,000 35,000 2,500 3,600 Which salesman seems to be more consistent in the volume of sales?

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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.