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AntoineSoetewey / statsandr

A blog on statistics and R aiming at helping academics and professionals working with data to grasp important concepts in statistics and to apply them in R. See www.statsandr.com
http://statsandr.com/
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blog/descriptive-statistics-by-hand/ #16

Closed utterances-bot closed 3 years ago

utterances-bot commented 3 years ago

Descriptive statistics by hand - Stats and R

Learn how to perform a descriptive analysis of your data by hand. You will learn how to compute both location and dispersion measures to describe your data

https://statsandr.com/blog/descriptive-statistics-by-hand/

AntoineSoetewey commented 3 years ago

Comment written by Claire Della Vedova on January 24, 2020 18:03:32:

Very nice article ! Concerning variance, it seems to me that if n is sample size then variance for population use n-1 in formula.

AntoineSoetewey commented 3 years ago

Comment written by Claire Della Vedova on January 24, 2020 18:03:32:

Very nice article ! Concerning variance, it seems to me that if n is sample size then variance for population use n-1 in formula.

Comment written by Antoine Soetewey on January 24, 2020 18:17:09:

Hello Claire, Thanks for your comment.

I can assure you that:

See the formula of the sample variance from a well-known book (Mathematical Statistics written by Wackerly and al.):

sample-variance