The mean-standart deviation for yearly ratios is %0,945684.
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Definition of mean deviation in English English dictionary
The average absolute value of the difference between the population of numbers and the mean
the arithmetic mean of the absolute values of deviations from the mean of a distribution
In a statistical distribution, the average of the absolute values of the differences between individual numbers and their mean
This is the average absolute value of the distance of the data from the mean Although this is usually defined as distance from the mean, it merits mention that the median is the value from which the mean deviation is least (the mean is the value from which the squared deviation is least)
a measure of distribution of a set of data equal to the average difference of each point to the mean
(Ticaret) (MAD) The sum of the absolute value of error or deviation from an expected value, divided by the number of data points. Often used as a base measure of forecast accuracy