Group of people tried an exercise program for various amounts of time to see if it would help them to lose weight. This table shows the relationship between the number of weeks each person spent on the exercise program and the number of pounds they lost,
Weeks
6
3
1.
2
7
2
4
8
Pounds Lost (lb)
3
2,5
2
1
4.5
3
5.5
7
Vhich function best models the data?
V = -2x + 1.8
Oy -0.17x + 2
Oy 0.59x + 1.15
y=-0.50 +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