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Manhattan GMAT - Standard Deviation

If Q is set of consecutive integers, what is the standard deviation of Q?

1) Set Q contains 21 terms

2) The Median of set Q is 20

by krishna239455

Mon May 21, 2012 4:49 am
Forum: Data Sufficiency
Topic: Manhattan GMAT - Standard Deviation
Replies: 7
Views: 3919

Hi Anurag Thanks for the answer: I tried to solve it by applying the following rule but coul not suceed. Pls Tell me where I am going wrong. 1) This rule is same as applied by you that the distance between Q and origin should be 2. 2) since it makes a right angled isoceles triangle (two equal radii ...

by krishna239455

Fri May 18, 2012 11:31 pm
Forum: Problem Solving
Topic: GMAT Prep - Geometry
Replies: 2
Views: 984

Thanks Aneesh

I understood it.

Basically if there is a german who knows spanish also then he should know all the three languages which violates the rule that nobody speaks all the three languages.

by krishna239455

Fri May 18, 2012 11:26 pm
Forum: Data Sufficiency
Topic: Sets
Replies: 7
Views: 1518

Dear Aneesh I understood the Venn diagram drawn by you except the overlap between German and Spanish. How did you arrive to the "Zero" figure. How can you apply it without getting this information directly or indirectly. No where it is implicit that a german does not know spanish or vice v...

by krishna239455

Fri May 18, 2012 7:18 pm
Forum: Data Sufficiency
Topic: Sets
Replies: 7
Views: 1518

Ok Staurt, I got it. I will try to type the question rather than insert it as attachment. Question : Of the 200 members of the certain association, each member who speaks German also speaks English, and 70 of the members speak only Spanish. If no member speaks all three languages, how many of the me...

by krishna239455

Fri May 18, 2012 7:10 pm
Forum: Data Sufficiency
Topic: Sets
Replies: 7
Views: 1518

Experts pls help !

by krishna239455

Fri May 18, 2012 9:00 am
Forum: Data Sufficiency
Topic: Sets
Replies: 7
Views: 1518

Hi Bill and Mitch Thanks for the explaination. I have recently posted a question, which appeared in a well known GMAT source question bank: The increase in the number and scope of investigations into monopolistic business practices, have resulted in more antimonopoly litigation presently than ever b...

by krishna239455

Fri May 18, 2012 6:53 am
Forum: Sentence Correction
Topic: GMAT Prep
Replies: 6
Views: 1942

GMAT Prep

Since the correct answer begins with would have, i am confused where from the conditional sentence requierement came from?

Experts pls help.




Image

by krishna239455

Fri May 18, 2012 5:38 am
Forum: Sentence Correction
Topic: GMAT Prep
Replies: 6
Views: 1942
by krishna239455

Fri May 18, 2012 5:34 am
Forum: Data Sufficiency
Topic: Sets
Replies: 7
Views: 1518
by krishna239455

Fri May 18, 2012 5:31 am
Forum: Data Sufficiency
Topic: Inequality
Replies: 1
Views: 810

Thanks Thrills4ever

Its very effective way of thinking and getting answer quickly.

by krishna239455

Thu May 17, 2012 10:24 pm
Forum: Problem Solving
Topic: Committee question
Replies: 9
Views: 1868