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The nearly 60-year-old American retailer pointed to a 2017 study which found that just 26.2% of Black people and 25.7% of Asian people spend time in the countryside, compared with 44.2% of white ...
Percentage solution may refer to: Mass fraction (or "% w/w" or "wt.%"), for percent mass. Volume fraction (or "% v/v" or "vol.%"), volume concentration, for percent volume. "Mass/volume percentage" (or "% m/v") in biology, for mass per unit volume; incorrectly used to denote mass concentration (chemistry). See usage in biology. Category:
Therefore, the test correctly identifies 80% of non-use for non-users, but also generates 20% false positives, or false positive rate (FPR) = 0.20, for non-users. Assuming 0.05 prevalence, meaning 5% of people use cannabis, what is the probability that a random person who tests positive is really a cannabis user?
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