3. A pharmaceutic al company conducted a study to evaluate the effectiveness of a cancer treatment medicine. 400 patients were treated with the actual medicine. Another 600 patients received a placebo. 200 patients that received the treatment saw their tumors shrink.85 patients that receiv the placebo saw their tumors shrink. ed a. What is the probability that a tumor shrank? b. What is the probability that a tumor shrank, given a patient received the medicine? c. What is the probability that a tumor shrank, given a patient received the placebo?

3. A pharmaceutic al company conducted a study to evaluate the effectiveness of a cancer treatment medicine. 400 patients were treated with the actual medicine. Another 600 patients received a placebo. 200 patients that received the treatment saw their tumors shrink.85 patients that receiv the placebo saw their tumors shrink. ed a. What is the probability that a tumor shrank? b. What is the probability that a tumor shrank, given a patient received the medicine? c. What is the probability

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