Question:
5 A covid 19 test manufacturer is testing its newest instant
Last updated: 2/26/2023
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5 A covid 19 test manufacturer is testing its newest instant test It tests a total of 500 people 100 of whom are known to have the virus The following table shows the results Test is positive T Test is negative T Total Have virus V 90 30 120 Do not have virus V 40 160 200 Total a Find the probability that a person has the virus but tests negative b Find the probability that a person who has the virus tests negative 130 190 320 c Find the probability that a person who tests negative has the virus d An acquaintance of yours has a negative test result What is the probability that she does not have the virus Solution