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Set \(A\) consists of \(8\) different integers from the list \(\{1,3,5,7,9,11,13,15,17,19\}.\) What is standard deviation of the set \(A?\)
1. Set \(A\) does not include 11.
2. The average of the numbers in the given list is equal to the average of numbers in set \(A.\)
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 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statement (1) and (2) TOGETHER are NOT sufficient.
[spoiler]OA=C[/spoiler]
Source: e-GMAT
1. Set \(A\) does not include 11.
2. The average of the numbers in the given list is equal to the average of numbers in set \(A.\)
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 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statement (1) and (2) TOGETHER are NOT sufficient.
[spoiler]OA=C[/spoiler]
Source: e-GMAT
