The Reason Sample Variance Has a Divisor of N −

question 40

True/False

The reason sample variance has a divisor of n − 1 rather than n is that it makes the variance an unbiased estimate of the population variance.

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Definitions:

Confidence Level

The probability, expressed as a percentage, that the result of an experiment or study will fall within a specified range of values.

Confidence Interval

An interval of values, calculated from samples, that probably includes an undetermined population statistic, at a designated level of certainty.

Ordinal Data

A type of categorical statistical data type that involves order or ranking of the values but not the exact difference between them.

Weight

A measure of the gravitational force exerted on an object, typically measured in pounds or kilograms.