Resumen de Shorter variation of standard deviation for small sample

M. Forhad Hossain, Mian Arif Shams Adnan, Anwar H. Joarder

• The present study ensembles the variation of standard deviation in terms of range for small sample. Smaller ranges having minimum upper limit of the sample standard deviation and sample mean deviation have been found. A comparative study is conducted between their dispersions and evaluated by a couple of examples.