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Statistics - Nuances of Sets


We will start with sets today. First, let’s look at why we should focus on terminology in sets question. Thereafter, we will put up a very nice question from the Veritas book which is simple but takes...

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Statistics - Standard Deviation with Less Information


We know what data is necessary to calculate the standard deviation of a set, but in some cases, we could actually do with a lot less information than the average test-taker may think they need.

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Statistics - Mean, Median, Range Question


Today, we have a very interesting statistics question for you. It is based on statistics concepts such as mean, median, range etc.This question needs you to apply all these concepts but can still be e...

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Statistics - A Tough Question on Standard Deviation


Today, we have a 750+ level question on standard deviation concept of Statistics. We do hope you enjoy checking it out. Question: Given that set S has four odd integers and their range is 4, how many ...

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Statistics - Importance of Using Elimination


Process of elimination is only next to number plugging in popularity as a strategy for solving Quant questions on the GMAT. I am not a fan of either method. Yes, they are useful sometimes, and even ne...

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Sets - Inference Based Quant Questions!


Sometimes, to solve some tough questions, we need to make inferences. Those inferences may not be apparent at first but once you practice, they do become intuitive. Today we will discuss one such infe...

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Statistics - Advanced Averages Concept


Let’s discuss an advanced averages concept today. Say, you have the following set of consecutive integers: 2, 3, 4, 5, 6, 7, 8. What is the average of this set? There are 7 consecutive integers here a...

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Quant - Questions on Sets and Ratios


A post dedicated to our humble teachers! Considering that all GMAT questions are written by teachers, oddly enough, I found very few questions actually involving them. Today, we will discuss two GMAT...

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Statistics - Concept of Sampling


Today, we will discuss the concept of sampling. People with a statistics background will be very comfortable with it, but if you have not studied statistics, a little bit of knowledge will be helpful.

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Statistics - Challenge Arithmetic Mean Question


Today, we will give you a challenge question. The challenge of reviewing this question is not that the question is hard to understand – it is that you will need to solve this official question within...

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