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Answer:
0.193877
Step-by-step explanation:
The data given to us is
<em><u>Pre-Employment Drug Screening Results</u></em>
Positive test result Negative test result
Drug Use Is Indicated Drug Use Is Not Indicated
Subject Uses Drugs: 38 12
Subject Is Not a drug user: 19 29
Now the total of this is = 38+19+12+29= 98
Now the probability of false positive is = 19/98= 0.193877
The <u>Subject Is Not a drug user </u> would suffer from a false positive. He is not a user and has a positive result.
Answer:
21 is 20% of 105
Step-by-step explanation:
20% * x = 21
20/100 * x = 21
x = 21 * 100/20
x = 105
If you are using a calculator, simply enter 21×100÷20, which will give you the answer.