Normality:
Normality is a property of a random variable that is distributed according to the normal distribution .
Normality plays a central role in both theoretical and practical statistics: a great number of theoretical statistical methods rest on the assumption that the data, or test statistics derived from a sample of data, are normally distributed. Just for this reason, in practical statistics, data are very frequently tested for normality.
Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.
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