If you know the names of the remaining eight students in the spelling bee, what

Question

If you know the names of the remaining eight students in the spelling bee, what is the probability of randomly selecting an order and getting the order that is used in the spelling bee?
P(selecting the correct spelling bee order)=
2.Use the following results from a test for marijuana use which is provided by a certain drug testing company among 148 subjects with positive test results there are 29 false positive results aming 153 negative result there are five false negative results if one of the test subjects is randomly selected find the probability that the subject is negative or did not use marijuana
The probability that a randomly selected subject tested negative or did not use marijuana is If you know the names of the remaining eight students in the spelling bee, what is the probability of randomly selecting an order and getting the order that is used in the spelling bee?
P(selecting the correct spelling bee order)=
2.Use the following results from a test for marijuana use which is provided by a certain drug testing company among 148 subjects with positive test results there are 29 false positive results aming 153 negative result there are five false negative results if one of the test subjects is randomly selected find the probability that the subject is negative or did not use marijuana
The probability that a randomly selected subject tested negative or did not use marijuana is
P(selecting the correct spelling bee order)=
2.Use the following results from a test for marijuana use which is provided by a certain drug testing company among 148 subjects with positive test results there are 29 false positive results aming 153 negative result there are five false negative results if one of the test subjects is randomly selected find the probability that the subject is negative or did not use marijuana
The probability that a randomly selected subject tested negative or did not use marijuana is

Explanation / Answer

(2)

Total subjects tested = 148+153 = 301

Total subjects who tested negative = 153

Number of subjects who tested positive but did not use marijuana = Number of false positives = 29

So, number of subjects who tested negative who did not use marijuana = 153+29 = 182

So,

P(a randomly selected subject tested negative or did not use marijuana) = 182/301 = 0.605

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