GMAT Question of the Day (July 14)

Math

Is a positive number?
(1)

(2)

Verbal

In testing for food allergies, a false positive result occurs when a person is said to be allergic to a particular food when, in fact, he is not allergic to that food. A false negative result indicates that a person is not allergic to the food when, in fact, he is. To most accurately determine food allergies, a physician should use the test that gives the smallest percentage of false negative results because _________________________

A. some food allergies cause reactions severe enough to be life-threatening
B. none of the tests for food allergies have lasting side effects
C. in diagnosing food allergies it is important to be as thorough as possible, since most people with one known food allergy have other undiscovered food allergies
D. the proportion of tests that do not provide a clear result is the same for all tests of food allergies
E. all tests for food allergies have the same proportion of false positive results

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