Definition of

Normal Distribution

Normal Distribution example
Data can be distributed (spread out) like this "Bell Curve":


• The "Bell Curve" is the Normal Distribution.

• The yellow histogram shows some data that follows it closely, but not perfectly (which is ok).


Many things closely follow a Normal Distribution:

• heights of people
• size of things produced by machines
• errors in measurements
• blood pressure
• marks on a test

Copyright © 2018 MathsIsFun.com