Your Task: Find the area of the shaded square. - You can assume that the distance between each dot is
equal to 1
-You can draw on the diagram in whatever way helps
you
- Please show all math in the box below as well as any
explanations for the decisions you made in solving.

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)