题目信息
For what percent of those tested for a certain infection was the test accurate; that is, positive for those who had the infection and negative for those who did not have the infection?
(1) Of those who tested positive for the infection, $$\frac{1}{8}$$ did not have the infection.
(2) Of those tested for the infection, 90 percent tested negative.
(1) Of those who tested positive for the infection, $$\frac{1}{8}$$ did not have the infection.
(2) Of those tested for the infection, 90 percent tested negative.
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B:Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C:BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D:EACH statement ALONE is sufficient.
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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正确答案:
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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