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

• 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

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