Should I Use Bessel's Correction?
Warne (2017) Advocates Using Bessel's Correction Only If You Have a Sufficiently Large Sample and If You Are Actually Trying to Approximate the Population...
Warne (2017) advocates using Bessel's correction only if you have a sufficiently large sample and if you are actually trying to approximate the population mean. If you're just interested in finding the sample mean, and don't want to extrapolate your findings to the population, just omit the correction.
Why do we need Bessel's correction?
In statistics, Bessel's correction is the use of n − 1 instead of n in the formula for the sample variance and sample standard deviation, where n is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. ... gives an unbiased estimator of the population variance.
Why do you use N-1 in standard deviation?
The n-1 equation is used in the common situation where you are analyzing a sample of data and wish to make more general conclusions. The SD computed this way (with n-1 in the denominator) is your best guess for the value of the SD in the overall population. ... The resulting SD is the SD of those particular values.
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
