How Do You Determine If Data Is Normally Distributed?

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Data that is normally distributed can be represented on a bell-shaped curve. When data is distributed normally, it skews heavily towards a central value with little bias to the left or right. With normally distributed data, the mean, median and mode are equal. There is symmetry in the center, with 50 percent of values less than the mean and 50 percent of values greater than the mean.

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