Question

1) (15 points) Suppose 40 out of 600 rats exposed to a potential carcinogen develop tumors.A control group of 350 rats not exposed to the carcinogen develops 12 tumors. Based

on these data, computed (a) the relative risk, (b) the attributable risk, and (c) the odds ratio.Do these indicators suggest that there is a relationship between exposure and tumor risk?

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