This is an interesting chart that tracks the average college GPA by year. It also gives a breakdown of the differences between the average GPA at private and public colleges. The average GPA, as you can see, is much higher at private colleges than at public ones. So, why have GPAs been rising, and why does it seem easier to earn an A at a private college than at a public one?

Source: FlowingData

Via: Freakonomics Blog

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