Q.4* Eastern Electronics has the following records on the number of complaints received concerning a particular brand of calculator it produces:- Number of daily complaints Observed frequency 3 1 10 25 3 30 4 15 5 12 5 7 At an 5% level, test the hypothesis that the number of daily complaints has the Poisson distribution with a mean rate of three per day.

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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.