GMAT Question of the Day (August 21)

Math

Which of the following sets has the standard deviation greater than the standard deviation of set X={-19, -17, -15, -13, -11}

A={1, 3, 5, 7, 9}

B={2, 4, 6, 8, 10}

C={1, -1, -3, -5, -7}

A. Set A only
B. Set B only
C. Set C only
D. Sets A, B and C
E. None of the sets

Question Discussion & Explanation
Correct Answer - E - (click and drag your mouse to see the answer)

Verbal

In the last two years alone, nearly a dozen of Central University's most prominent professors have been lured away by the higher salaries offered by competing academic institutions. In order to protect the school's ranking, Central University's president has proposed increasing tuition by 10% and using the extra money to offer more attractive compensation packages to the most talented and well-known members of its faculty.

Which of the following provides the most persuasive argument against the university president's proposed course of action?

A) It is inevitable that at least some members of the faculty will ultimately take jobs at other universities, regardless of how much Central University offers to pay them.
B) Other universities are also looking for ways to provide higher salaries to prominent members of the faculty.
C) Central University slipped in the last year's ranking of regional schools.
D) The single most important factor in ranking a university is its of racial and socioeconomic diversity.
E) The president of Central University has only been in office for 18 months and has never managed such a large enterprise.

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