Historical records indicate that the probability that a motorist will have an accident during the weekend and file a claim is 0.0005. assume that the firm wrote 400 policies for the coming weekend, what is the probability that exactly two claims will be filed?

3382-299=3383- ? fill in the blank?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?