Page 8 - Correct Sentences

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Page 8 - Correct Sentences

by ronaldramlan » Thu Sep 09, 2010 8:17 pm
Hello,

I think your flashcard is nicely structured and full of valuable tips for test takers. Yet, I believe that one of the cards (in page 8) about "Correct Sentences" is not necessarily valid.

While it is true that 20% of the correct answer in Sentence Correction would be the original construction of the sentence (choice A), we cannot imply from this fact that the number of questions having choice A as the correct answer is approximately 3 out of 14-15 questions. It appears that, in that case, we simply take the 20% rule and apply to the number of SC questions in the GMAT to obtain the approximate number of questions with A as the answer. In fact, we don't know the probability of the questions with answer choice A as the correct answer. What we know is, for every SC question, there is a 20% chance that the correct answer would be A.

Consequently, the probability of having 3, or 4, or 5 questions with choice A as the correct answer out of 15 SC questions should differ from one another.


Regards,
Ronald
Source: — GMAT Strategy |

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by ronaldramlan » Thu Sep 09, 2010 8:21 pm
Sorry, I should have posted this in the "GMAT Flashcard" topic.

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by uwhusky » Thu Sep 09, 2010 8:47 pm
Let's put it this way, if Princeton's Crack the GMAT can post its guesstimate strategy and profit hundreds of thousands of dollars, we shouldn't be too critical of a guessing strategy from a free set of flashcards.

The best strategy is still to learn the actual material without guessing.
Yep.