One hundred sixty cell phone owners were surveyed.
a. what fraction of owners prefers using their cell phone for text messaging or playing games? explain
b. what fraction of owners prefers using your phone to take pictures or text messages?

What is the difference between regular convex and concave polygons

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

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project