Two brands of tyres are tested with the following results : Life Brand of tyres in '000 miles X Y 20–25 1 0 25–30 22 24 30–35 64 76 35–40 10 0 40–45 3 0 Which brand of tyre would you use on your fleet of trucks based on coefficient of variation ?

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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.