you are conducting a case-control study to evaluate whether the risk of covid diagnosis is lower among those who wore a mask in the last two weeks compared to those who did not wear a mask. here are the provided figures: a total of 34 people wore a mask in the last 2 weeks of these, 12 people were diagnosed with covid among those that did not wear a mask, 13 people were not diagnosed with covid a total of 28 people were diagnosed with covid

A. please list the values for cells a, b, c, and d. you will have to calculate (using addition and subtraction) using the numbers listed in the prompt into a 2x2 table.

B. please calculate the appropriate measure of association for a case-control study. show what equation you are using.

C. How do you interpret the measure of association you calculated above?