Sample size is the number of observations in a sample (Evans et al. 2000, p. 16). It is commonly denoted 
or 
.
Sample Size
See also
Quantile, Sample, Sample Mean, Sample Space, Sample Variance, Slovin's FormulaExplore with Wolfram|Alpha
References
Evans, M.; Hastings, N.; and Peacock, B. Statistical Distributions, 3rd ed. New York: Wiley, 2000.Referenced on Wolfram|Alpha
Sample SizeCite this as:
Weisstein, Eric W. "Sample Size." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SampleSize.html