The mean amount μ for all of the invoices for your company last month is not known. based on your past experience, you are willing to assume that the standard deviation of invoice amounts is about $200. if you take a random sample of 100 invoices, what is the value of the standard deviation for x?

Match each function with the corresponding function formula when h(x)=5-3x and g(x)=-3+5

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

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²