Population's Numerical Summary

However, it would be practical to admit a precedent of 1,000 secretaries across the country, using randomization, replication, and blocking techniques, and indeed compute an average of the earnings of these 1,000 secretaries. Such a sample would constitute a statistic. A

statistic is a numerical measure computed from a subset of the population.

In another example, it would be impossible to count accurately how many nails were sold by hardware stores in this country in a minded(p) year (a parameter). However, it would be possible to sample several light speed hardware stores across the country and compute a
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