Topic
Bessel's correction.
multiplicative correction for an estimator for variance, such that it becomes unbiased
The journal
Open the journal →The conversation starts in the journal — be the first to post.
About 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. It also partially corrects the bias in the estimation of the population standard deviation. However, the correction often increases the mean squared error in these estimations. This technique is named after Friedrich Bessel.
Everything about Bessel's correction →