# Covariance Matrix

There are various concepts in statistics that are quite often used in many other fields of study in real life. Mean, median, mode, standard deviation and variance are few common terminologies which are being utilized almost allover where ever large numerical data is studied. There are more uncommon, but very important concepts such as: **covariance, correlation, covariance matrix **etc. In this page, we are going to learn about covariance matrix. It is a matrix that uses variance and covariance as its elements. Covariance matrices are utilized in higher-level mathematics and fields like: **engineering, computer science, physics, financial economics **etc.