Help with Probability and Permutation and Combination

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Can somebody recommend good study material on Probability and Permutation and Combination..
ALso, suggest how good you have to be in these subjects in order to score 700+

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by Dan@VinciaPrep » Wed May 18, 2011 3:12 am
Hello,
To partly answer your second question, the average GMAT test has a little over one probability question per test. On my test, I remember having 1 probability question and one permutation question. In general, I advise my students to really get the other sections of the GMAT down before spending a lot of time on these subjects.

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