Bonus: This GRE study schedule is also available in a redesigned, printable version! OK, you are starting more or less from scratch, and you want to prepare for the GRE in 90 days. You need a strategic plan to organize yourself. I designed four different versions of the 90 Day Plan, and I need you […]

# Author Archive | Mike MᶜGarry

## GRE Quartiles and the Interquartile Range

Statisticians point out that it’s often useful to “chunk” data to understand it. What does it mean to “chunk” data? It means dividing a long list into smaller chunks so that, with a few well-chosen numbers, we can get a sense of the layout of the list. The fundamental “chunking” number is the median. The […]

## Normal Distribution on the GRE

A distribution is a graph that shows what values of variable are more or less common in a population. Where the graph is higher, there are more people, and where the graph has a height close to zero, there are fewer people. By far, the most famous and most useful distribution is the Normal […]