Question: Please explain and help Two studies examined the relationship between heart disease and aspirin. Which study supports the conclusion that taking aspirin lowers the risk

Please explain and help

Two studies examined the relationship between heart disease and aspirin. Which study supports the conclusion that taking aspirin lowers the risk of heart attacks? Why? Study 1: A researcher studies the medical records of 500 randomly selected patients. Based on the information in the records, he divides the patients into two groups: those given the recommendation to take an aspirin every day and those with no such recommendation. He reports the percentage of each group that developed heart disease. Study 2: A researcher studies 500 patients who visited a regional hospital. He randomly assigns 250 patients to take aspirin every day and 250 to take a placebo that looks like aspirin. At the end of 5 years, he reports the percentage of each group that developed heart disease

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