Filed under Average, GMAT Problem Solving by Take GMAT Team on December 8, 2011 at 12:00 am
{19 comments}
What is the standard deviation (SD) of the four numbers p, q, r, s?
1. The sum of p, q, r and s is 24
2. The sum of the squares of p, q, r and s is 224
A. Statement 1 alone is sufficient but statement 2 alone is not sufficient to answer the question asked.
B. Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer the question asked.
C. Both statements 1 and 2 together are sufficient to answer the question but neither statement is sufficient alone.
D. Each statement alone is sufficient to answer the question.
E. Statements 1 and 2 are not sufficient to answer the question asked and additional data is needed to answer the statements.
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Filed under Average difficult GMAT Questions, GMAT Difficulty level by Take GMAT Team on August 1, 2011 at 12:00 am
{13 comments}
If each of the 8 employees working on a certain project received an award, was the amount of each award the same?
(1) The standard deviation of the amounts of the 8 awards was 0.
(2) The total amount of the 8 awards was $10,000.
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. Statements (1) and (2) TOGETHER are NOT sufficient.
Filed under Average, Average difficult GMAT Questions by Take GMAT Team on March 26, 2010 at 12:55 am
{29 comments}
What is the standard deviation of Q, a set of consecutive integers?
(1) Q has 21 members.
(2) Q has 20 members
A) Statement 1 alone is sufficient but statement 2 alone is not sufficient to answer the question asked.
B) Statement 2 alone is sufficient but statement 1 alone is not sufficient to answer the question asked.
C) Both statements 1 and 2 together are sufficient to answer the question but neither statement is sufficient alone.
D) Each statement alone is sufficient to answer the question.
E) Statements 1 and 2 are not sufficient to answer the question asked and additional data is needed to answer the statements.
Filed under 1000 CR, 1000 High Frequency RC Words by Take GMAT Team on February 10, 2010 at 12:52 am
{41 comments}
.1…2….3…. 4….. 5…… 6………………………Good News… TakeGMAT Team pleased to announce that now you will receive not 1, 2 or 3….Total six questions a day…….On the each interval of 4 hours. We can increase or decrease the frequency of questions depends on your feedback.
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> Critical Resoning
> Sentence Correction
> Reading Comprehension
> Data Sufficiency
> Problem Solving
> PS/DS
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