In a of the population. It is known that 20 per cent of the males and 5 per cent of the females are unemployed A research student studying the employment situation selects unemployed persons at random. What is the probability that the person selected is (a) male, (b) female? [Delhi Univ. M.Com., 2002; Kumaon Uniu, MBA, 2001)

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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.