Mathematics, 03.02.2020 21:55 Babygirljay1540
Sarah has a photography blog.3/7 of her photos are of nature. 1/4 of the rest are her friends. what fraction of all of seeress photos is of her friends?
Answers: 2
Mathematics, 21.06.2019 18:50, karen718
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
Mathematics, 21.06.2019 19:40, marshallmattah
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
Answers: 1
Sarah has a photography blog.3/7 of her photos are of nature. 1/4 of the rest are her friends. what...
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