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by galina_gmat
July 13th, 2012, 3:05 pm
Forum: GMAT Preparation
Topic: GMAT Maths (Quantitative) Questions
Replies: 20
Views: 23842

Re: GMAT Maths (Quantitative) Questions

Hi avrgmat, below are my notes with straightforward reasoning how I would solve these problems. 1. DS - Statistics (1) Knowledge of the mean score does not allow us to calculate the standard deviation without knowledge of of the individual scores. Thus, the statement alone is unsufficient. (2) This ...