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Standard Deviation on the New GRE

Standard Deviation on the New GRE

Many quake in their boots when they hear that there will be Statistics covered on the GRE. They run to their college stats textbooks, dust off the cover, roll up their sleeves, and start computing the standard deviations of a list of twenty, three-digit numbers. Stop, if this in anyway describes you. The Statistics on [...]

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GRE Data Interpretation Practice Questions: Pie Chart and Bar Chart

GRE Data Interpretation Practice Questions: Pie Chart and Bar Chart

GRE Data Interpretation Practice Set The following pie chart shows the breakdown of revenues for a particular grocery store over the first quarter of this year.  The bar chart shows the detail of breakdown for frozen foods.     1) What is the dollar amount of sales of canned goods in the first quarter of [...]

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The Basics of Data Interpretation on the GRE

The Basics of Data Interpretation on the GRE

Fact: within the course of each Quantitative section, you will have, on average, two sets of Data Interpretation questions.  Each set will present data in some form (graph, table, etc.), and you will have two or three consecutive questions on that same data set.   Why does the GRE ask Data Interpretation questions? Absolutely in [...]

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GRE Perfect Math Score Challenge

GRE Perfect Math Score Challenge

The Revised GRE is a long, grueling test. To get a perfect score on the quantitative section (a 170) you will not only have to answer the difficult questions correctly, but you will also have to answer all of the easy ones. Nonetheless, I’ve focused on the difficult questions for the 170-challenge. I can’t promise [...]

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GRE Data Interpretation Strategies

GRE Data Interpretation Strategies

Helpful Tips for the GRE Data Interpretation Section If I had to count the number of questions/concerns regarding combinations or permutations, I’d have to use some pretty mighty factorials to do so. On the other hand, if I had to count the number of times students have expressed the same misgivings regarding Data Interpretation, I’d [...]

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GRE Geometry Formulas

GRE Geometry Formulas

Perhaps you recall with more than a little dread your high school geometry class: fifteen-step proofs and the law of cosines were two things you were certain you’d never see again. Well, if you are taking the GRE, you were by no means mistaken—proofs and indeed all of trig are nowhere to be found on [...]

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Compound Interest vs. Simple Interest on the GRE

Compound Interest vs. Simple Interest on the GRE

For some this is the most “interest”ing concept on the Revised GRE (at least for those with a fondness for bad puns). For most, compound vs simple section can be a nuisance. Many think, what is the difference between the two, and/or how did that formula go again? But remember, this concept involves money, and [...]

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GRE Counting and Probability: Practice Question of the Week #39 Answer

GRE Counting and Probability: Practice Question of the Week #39 Answer

Here’s the answer to yesterday’s practice question– thanks for sending in all of your answers and explanations!

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GRE Counting and Probability: Practice Question of the Week #39

GRE Counting and Probability: Practice Question of the Week #39

Here’s this week’s practice question– good luck, we’ll be posting the answer tomorrow! How many integers between and  are such that the sum of their digits is ? 190 210 211 230 231 Update: Answer/explanation post!

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GRE Math: Ratios

GRE Math: Ratios

Ratios are one of those concepts that can pop up in just about any GRE problem. You could have the ratio between two angles that form from intersecting lines. You could have the ratio of rates a person drove at. With such a broad application, ratios are one of the concepts it is imperative you [...]

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