Metadata
Author: Samanantar
Data
Bangla[bn]
ভেদাঙ্ক হলো সহভেদাঙ্কের একটি বিশেষ রূপ, যখন চলক দুটি একদম একই রকম।
English[en]
The variance is a special case of the covariance in which the two variables are identical (that is, in which one variable always takes the same value as the other):