Suppose that we were going to conduct a study to determine if there is an decrease in risk of getting lung cancer based on whether the person eats strawberries several times a week. in the group(1 that eats strawberries regularly, we find than 5 out of 2000 get lung cancer. in the group(2 that does not eat strawberries regularly, we find that 5 out of 1000 get lung cancer. what is the sample relative risk?