20. The following table summarizes data collected in a study to evaluate a new screening test for ovarian cancer. A total of 200 women were involved in the study - 50 had ovarian cancer and 150 did not. The results are tabulated below. Ovarian Cancer Free of Ovarian Cancer Screening Test Positive 28 23 Negative 22 127 50 150 a. Find the sensitivity of the screening test. b. Find the false positive fraction of the screening test. C. What proportion of women who screen positive actually have ovarian cancer?

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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.