In this lecture we will explain population parameter and sample statistic.

**Parameters** are numbers that summarize data for an entire population.

**Statistics** are numbers that summarize data from a sample, i.e. some subset of the entire population.

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In this lecture we will explain population parameter and sample statistic.

**Parameters** are numbers that summarize data for an entire population.

**Statistics** are numbers that summarize data from a sample, i.e. some subset of the entire population.