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The standard deviation stretch is used to stretch the output values using a normal distribution. The result of this stretch is similar to what is seen by the human eye.
You can't estimate std dev by eye; use the range rule of thumb which is: std dev = range/4.
when a ray of light enters two specifically arranged prisms and disperese i.e. splits into characteristic colours without suffering any deviation inside the prisms(the magnitude of deviation for both the prisms is same and in opposite direction, so net deviation is zero); its called dispersion without deviation...
The mean deviation (also called the mean absolute deviation) is the mean of the absolute deviations of a set of data about the data's mean. The standard deviation sigma of a probability distribution is defined as the square root of the variance sigma^2,
The diversification of culture in society is called Cultrul daviation
Is abnormal left axis deviation serious
The condition is called presbyopia.phacosclerosis
The square of the standard deviation is called the variance. That is because the standard deviation is defined as the square root of the variance.
Standard deviation can be calculated using non-normal data, but isn't advised. You'll get abnormal results as the data isn't properly sorted, and the standard deviation will have a large window of accuracy.
No, it is called the absolute deviation.
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