MAKING IT USEABLE    Interpreting Estimates       Glossary

Average is the sum of a set of quantities divided by the number of quantities in the set. Also called the "mean".

Standard Deviation measures the spread in individual data points to reflect the uncertainty of a single measurement.

Confidence Interval is expressed as a range of uncertainties at a stated percent confidence. This percent confidence reflects the percent certainty that the value is within the stated range. The confidence interval is the preferred method for describing the range of uncertainty in a value.

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