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free120/Block 3/Question#26 (7.0 difficulty score)
A new test to detect the presence of malarial ...
95%🔍,📺
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 +1 
submitted by benwhite_dotcom(492),
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citpyiefcSi is hwo ftone ouyr tets is hgitr btoua epelop uihttwo het aese:sid

= TN / NT( + )PF
= 59 / 559()+
= %95

drdoom  Put another way: Of all the people who are disease-free, how many (of those people) did you catch? In this case, there are 100 people who are disease-free; our test labeled 95 of those people as “disease-free”, but our test also called 5 of those people “positive”; so our test is good (sort of) but not that good. +1  
drdoom  Also note how specificity only answers questions about people WITHOUT THE DISEASE; it only “deals with” people who are disease-free. (Sensitivity is the opposite: it is a formula which only deals with people WITH THE DISEASE. I think understanding that is better than coming up with some crazy Snout-Spout-Spin mnemonic, which I never remember anyway.) +