Sample size

The sample size of a statistical sample is the number of repeated measurements that constitute it. It is typically denoted n, and is a non-negative integer (natural number).Typically, different sample sizes lead to different accuracies of measurement. This can be seen in such statistical rules as the law of large numbers and the central limit theorem. All else being equal, a larger sample size n leads to increased precision in estimates of various properties of the population.
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[n] The number of units in a sample.

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