Mathematics, 13.11.2019 18:31 journeyhile5
Acompany's management is worried about employee drug use and is instituting a policy of mandatory drug tests. if an employee is a drug user, there is an 85% chance that he or she will test positive. if the employee is not a drug user, there is a 95% chance that he or she will test negative. individuals who test positive are fired. we do not know the fraction of employees who are drug users. we do know, however, that 10% of all employees tested positive.
a) what fraction of employees are drug users?
b) of those who test positive, what fraction are in fact not drug users?
Answers: 2
Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
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Mathematics, 21.06.2019 19:00
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Mathematics, 21.06.2019 23:30
The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]
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Mathematics, 22.06.2019 00:30
$5400 is? invested, part of it at 11? % and part of it at 8? %. for a certain? year, the total yield is ? $522.00. how much was invested at each? rate?
Answers: 1
Acompany's management is worried about employee drug use and is instituting a policy of mandatory dr...
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