The following contingency table summarizes the drug test results for 422 test-takers: Positive Negative 0 164 Doesn't use drugs Uses drugs Total 247 11 Total For a randomly selected test administration, find the following probabilities. (Round the answers to 4 decimal places.) 1) The probability that the test-taker doesn't use drugs:

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Question 8
The following contingency table summarizes the drug test results for 422 test-takers:
Positive
Negative
0
164
Doesn't use drugs
Uses drugs
Total
2) The probability of a true negative:
3) The probability of an error:
247
For a randomly selected test administration, find the following probabilities. (Round the answers to 4
decimal
places.)
1) The probability that the test-taker doesn't use drugs:
4) The negative predicting value:
11
1000
Total
Transcribed Image Text:Question 8 The following contingency table summarizes the drug test results for 422 test-takers: Positive Negative 0 164 Doesn't use drugs Uses drugs Total 2) The probability of a true negative: 3) The probability of an error: 247 For a randomly selected test administration, find the following probabilities. (Round the answers to 4 decimal places.) 1) The probability that the test-taker doesn't use drugs: 4) The negative predicting value: 11 1000 Total
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