1. If a random employee is chosen, the probability of selecting an employee who tests positive...

Question

Question

1. If a random employee is chosen, the probability of selecting an employee who tests positive or who uses drugs is 2. If two

drug tests were carried out on company employees and the results are summarized in the following table. Negative test result

The following table represents the probability distribution of a discrete variable x. What is the value of the unknown probab

math Statistics-And-Probability

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

1. Probability = (5/50)*(45/50) = 0.09

2. 0.12 + 0.05 + 0.24 + P(3) + 0.18 = 1

P(3) = 1 - (0.12 + 0.05 + 0.24 + 0.18) = 0.41

Add a comment

Answer 2

Similar Homework Help Questions

1. If a random employee is chosen, the probability of selecting an employee who tests positive...

1. If a random employee is chosen, the probability of selecting an employee who tests positive or who uses drugs is 2. If two employees are selected without replacement of those who use drugs, the probability that the first person selected had a result test positive and the second person had a negative test result is 3. If two employees are selected with replacement for those who use drugs, the probability that the first person selected had a negative test...
1) The table below classifies 555 subjects by drug use and drug test result. Subject Uses...

1) The table below classifies 555 subjects by drug use and drug test result. Subject Uses Drugs Positive Test Result (Test shows drug use.) 45 (True Positive) 25 (False Positive) Negative Test Result (Test shows no drug use.) 5 (False Negative 480 (True Negative) Subject Does Not Use Drugs a) If a subject is selected at random, find the probability this person uses drugs given that the test result is negative. (a) Express this statement in probability notation. (b) Find...
1) The table below classifies 555 subjects by drug use and drug test result. Subject Uses...

1) The table below classifies 555 subjects by drug use and drug test result. Subject Uses Drugs Positive Test Result (Test shows drug use.) 45 (True Positive) 25 (False Positive) Negative Test Result (Test shows no drug use.) 5 (False Negative 480 (True Negative) Subject Does Not Use Drugs a) If a subject is selected at random, find the probability this person uses drugs given that the test result is negative. (a) Express this statement in probability notation. (b) Find...

18. Drug Screening If one of the test subjects is randomly seleci the subject had a...

18. Drug Screening If one of the test subjects is randomly seleci the subject had a positive test result or does not use drugs. 19. Drug Screening if one of the subjects is randomly selected, find the probability that the subject had a negative test result or does not use drugs. Whiarre is randomly selected, find the probability that the Negative Test (Drug Use Is Not Indicat Table 4-1 Pre-Employment Drug Screening Results Positive Test Result (Drug Use Is Indicated)...
1. If one subject is randomly selected, find the P (positive test result or a subject...

1. If one subject is randomly selected, find the P (positive test result or a subject uses drugs) Positive test result Negative test result Subject Uses Drug 44 (True positive) 6 (False Negative) Subject is not a drug user 90 (False Positive) 860 ( True Negative) O 0.134 O 0.14 O 0.50 O 0.44
Medical screening tests are used to check for the presence on disease, evidence of illegal drug...

Medical screening tests are used to check for the presence on disease, evidence of illegal drug use, etc. The its sensitivity and its specificity. The sensitivity among those with the condition that will test positive. The specichy proportion among those without the condition that will test neg sensitivity of a test is defined to be the conditional ng those without the condition that will test negative. More formally, the test is defined to be the conditional probability that a person...

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects...

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Positive test result Drug Use Is Indicated Negative test result Drug Use Is Not Indicated Subject Uses Drugs Subject Is Not a Drug User Pre-Employment Drug Screening Results The probability of a false positive test result is (Round to three...
2 separate questions, please answer all parts. thank you!! Refer to the sample data for pre-employment...

2 separate questions, please answer all parts. thank you!! Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Drug Use Is Indicated 46 Negative test result Drug Use Is Not Indicated Subject Uses Drugs Subject is Not a Drug User 32 The...
Refer to the sample data for pre-employment drug screening shown below. If one of the subjects...

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test result Drug Use Is Indicated 47 18 Negative test result Drug Use Is Not Indicated 12 34 Subject Uses Drugs Subject Is Not a Drug User The probability of a false positive test result...

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects...

Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is randomly selected, what is the probability that the test result is a false positive? Who would suffer from a false positive result? Why? Pre-Employment Drug Screening Results Positive test es Negative test result Drug Use Is Indicated Drug Use ls Not Indicated Subject Uses Drugs Subject Is Not a Drug User 47 18 12 34 The probability of a false positive test result...

1. If a random employee is chosen, the probability of selecting an employee who tests positive...

Homework Answers