2. In an experiment to examine the relationship between heart disease and the place of life, the following data were collected for 200 people: Big city Small town Rural Heart disease 35 38 24 The place of life 22 28 53 If one of these individuals is selected at random, find the a. Possibility of being someone who does not live in the countryside while known to be someone without a heart disease. b. Possibility of someone with heart disease, known to be someone who doesn't live in th big city.

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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.