The graph of an ellipse is shown.
Which equation represents this ellipse?
Ту
(X-62
49
(y-2)
9
= 1
8
(x+
6y + 2)
= 1
6
49
9
4
o =6)2 + (x - 2)2 = 1
49
9
2
(v + 6
(x + 2)2
9
= 1
49
6
TO
14 x

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

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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