An athlete suspected of having used steroids is given two tests that
Chapter 0, Problem 12.19(choose chapter or problem)
An athlete suspected of having used steroids is given two tests that operateindependently of each other. Test A has probability 0.9 of being positive if steroidshave been used. Test B has probability 0.8 of being positive if steroids have beenused. What is the probability that neither test is positive if steroids have beenused?(a) 0.72 (b) 0.38 (c) 0.02Government data give the following counts of violent deaths in a recent year amongpeople 20 to 24 years of age by sex and cause of death:Female MaleAccidents 1818 6457Homicide 457 2870Suicide 345 2152
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