Population About 30% of the U. S. population is under 20 years old. About 17% of
the population is over 60. What is the probability that a person chosen at random is
under 20 or over 6Q?

Can someone answer these problems for me

Use the graph of the sine function y=2sinθ shown below

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