People are at the centre of Discovery Health and everything we do. With our members in mind, we pioneered products such as the Medical Savings Account and Vitality. Discovery Health empowers you, more than any other health insurer, to take control of your health and manage your day-to-day spend.
A measure of how strong the relationship is between the value of two random variables (e. g. the price of two shares over time). Correlation is always between –1 and 1. A correlation of 1 means that two variables will move in perfect harmony, a correlation of –1 means that two variables will move in perfect disharmony.