A measure of dispersion of a set of data points around their mean value The mathematical expectation of the average squared deviations from the mean The square root of the variance is the standard deviation
The variance (or mean square) may be thought of as the average squared difference between observations and their mean It gives an indication of the amount of variability in a set of data
The variance of a parameter pool is a measure of the variability of the pool It is determined by squaring the deviations of each value about the mean and dividing by one less than the number of individuals in the pool The variance is the square of the standard deviation
Variance measures the dispersion of a return distribution It is the sum of the squares of a return's deviation from the mean, divided by n The value will always be ≥ 0, with larger values corresponding to data that is more spread out σ (X - μ)2
A statistical measure of the dispersion of observation values in a data set The variance of a sample is the sum of the square of each value in the data set subtracted from the mean divided by one less than the total number of observations in the data set
Sample variance is a measure of the variability of a sample, based on the sum of the squared deviations of the data values about the mean Population variance is a theoretical measure of the variability of a population
The average squared deviation about the mean of a set of data A measure of the variation around the central class of a distribution; the average squared deviation of the observations from their mean value
An indulgence granted by a local zoning commission or authority to allow a non-conforming use of a property to continue The zoning bylaw or ordinance is actually amended as it pertains to the particular property
In statistics, a measure of variability (or spread); the mean-square deviation from the mean, that is , the mean of the squares of the differences between individual values of x and the mean value μ σ = E[(x - μ)2] = E(x2) - μ2 where E denotes expected value The positive square root σ of the variance is called the standard deviation
A measure of the dispersion shown by a set of observations, defined by the sum of the squares of deviations from the mean, divided by the number of degrees of freedom in the set of observations
Refers to permission that allows a property owner to depart from the literal requirements of a zoning ordinance that, because of special circumstances, cause a unique hardship Included would be such things as the particular physical surroundings, shape or topographical condition of the property and when compliance would result in a practical difficulty and would deprive the owner of the reasonable use of the property
A disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, as between the writ and the declaration, or between the allegation and the proof
A measure of dispersion of a set of data points around their mean value The mathematical expectation of the squared deviations from the mean The square root of the variance is the standard deviation
A statistic which measures how spread out or dispersed a set of data is The value calculated will always be greater than or equal to zero, with larger values corresponding to data which is more spread out If all data values are identical, the variance is equal to zero The square root of the variance is called the standard deviation Since the standard deviation is measured in the same units as the data, it is more frequently used than the variance The variance and standard deviation are calculated in the One Variable Analysis statlet
the sum of the squares of the deviates divided by one less than the total number of deviates; a measure which indicates how far away from the middle the statistics are; usually denoted by the lower case s2 Variance is the standard deviation squared In practice, it is easier to compute the variance, then take the square root to obtain the standard deviation (See standard deviation )
A measure of the up and down swings your bankroll goes through Variance is not necessarily a measure of how well you play However, the higher your variance, the wider swings you'll see in your bankroll
The most commonly used statistical measure of dispersion The first step is to square the deviations of a data item from its average value Then the average of the squared deviations is calculated to obtain an overall measure of variability
The average of the squared deviations of a random variable from the expected value of the variable The variance of an estimate is the squared standard error of the estimate
In statistics, in a population of samples, the mean of the squares of the differences between the respective samples and their mean, expressed mathematically as