GMAT Data Sufficiency
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Source: GWD
Level: 3
Is the standard deviation of the salaries of Company Y’s employees greater than the standard deviation of the salaries of Company Z’s employees?
(1)The average (arithmetic mean) salary of Company Y’s employees is greater than the average salary of Company Z’s employees.
(2)The median salary of Company Y’s employees is greater than the median salary of Company Z’s employees.
- 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.