d. For the 15 cities, find the probability that the average amount of pollutants is less than 9.4 ppm. e. For part d), is the assumption that the distribution is normal necessary?O Yes No f. Find the IQR for the average of 15 cities. Q1 = %3D ppm Q3 = ppm IQR: ppm

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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.