問題詳情
2. 已知某種快篩試劑對某病毒的檢驗,其「偽陰率」為8%(即帶原者做檢驗有8%的機會呈陰性反應,其他呈陽性反應),而「偽陽率」為1%(即未帶原者做檢驗有1%的機會呈陽性反應,其他呈陰性反應)。某地區經快篩試劑篩檢後呈現陽性反應的民眾中有2%為此病毒的帶原者,則此地區病毒的帶原者占全部人口的比例約為何?
(A) 2%
(B)0.2%
(C) 0.02%
(D) 0.002%。
(A) 2%
(B)0.2%
(C) 0.02%
(D) 0.002%。
參考答案
無參考答案
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