You and your business partner track the number of customers served and the amount of tips collected per day. the data you gathered is displayed in the chart below. servers’ collected tips customers 54 46 34 67 52 22 49 64 55 80 38 42 tips ($) $92 $80 $76 $121 $109 $43 $87 $114 $99 $174 $88 $91 a) create a scatterplot displaying the data in the table. be sure to include a linear trend line.

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