1 The OnStar Basic Plan is available for up to 5 years from the original delivery date on new, eligible 2014a model year and newerb vehicles and is transferable; and for three years for new subscribers of eligible 2011 model year or newer, OnStar-equipped, pre-owned vehicles.
DEFINITION of 'Standard Deviation'. 1. A measure of the dispersion of a set of data from its mean. The more spread apart the data, the higher the deviation. Standard deviation is calculated as the square root of variance.2. In finance, standard deviation is applied to the annual rate of return of an investment to measure the investment's volatility. measure of the dispersion of a set of data from its mean. The more spread apart the data, the higher the deviation. Standard deviation is calculated as the square root of variance. 2.
Standard Deviation and Finance. Perhaps standard deviation is the most important concepts as far as finance is concerned. Finance and banking is all about measuring and managing risk and standard deviation measures risk (Volatility). Standard deviation is used by all portfolio managers to measure and track risk. One of the most important ratios in portfolio management, Sharpe Ratio (for which William Sharpe got a Nobel Prize) uses Standard Deviation to measure risk adjusted return (and hence provides incentives to portfolio managers to generate return by taking minimum risk).