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 (SD) the dispersion of a random variable; a measure of the amount by which each value deviates from the mean. It is equal to the square root of the variance.For data that have a normal distribution, about 68 per cent of the data points fall within (plus or minus) one standard deviation from the mean and about 95 per cent fall within (plus or minus) two standard deviations.Symbol Ï.eviation. 1. a turning away from the regular standard or course. 2. in ophthalmology, strabismus. 3. in statistics, the difference between a sample value and the mean. axis deviation an axis shift in the frontal plane, as seen on an electrocardiogram.