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The relationship between a high fat diet and colorectal cancer may be confounded by level of exercise (e.g. individuals with a low fat diet may exercise more than individuals on a high fat diet), In order to assess the possibility of confounding, two tables (tables 2 and 3) have been created by stratifying the results of diet and colorectal cancer by level of exercise. Table 2: Active exercise among cases and controls. Exercise Colorectal Cancer Fatty Diet Yes No Yes 36 58 No 36 112 2. Calculate the OR for Table 2 and state your results in a sentence. Table 3: No exercise among cases and controls. No Exercise Colorectal Cancer Fatry Diet Yes No Yes 105 402 No 156 884 3. Calculate the OR for Table 3 and state your results in a sentence. 4. Using the basic formula to evaluate confounding: Strata 1 OR Strata 2 OR. evaluate whether or not exercise confounds the relationship between a fatty diet and colorectal cancer. Explain your answer, 5. Based on what you have learned in your readings and in class lecture, how would you control for confounding