The following contingency table summarizes the drug test results for 422 test-takers:PositiveNegativeTotalDoesn't use drugs9160Uses drugs2476TotalFor a randomly selected test administration, find the following probabilities. (Round the answers to 4 decimalplaces.)1) The probability that the test result is negative:2) The probability of a false negative:3) The probability of an error:

Introduction: We need to first obtain the row totals, column totals, and grand total from the table.

Answered: The following contingency table…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A test was given to a group of students. The grades and gender are summarized below A B C Total Male 18 5 8 31 Female 3 2 20 25 Total 21 7 28 56 If one student is chosen at random from those who took the test,Find the probability that the student got a 'B' GIVEN they are female.
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