Standard deviation is a way to describe how the data is distributed around the Arithmatic Mean. It is not a simple formula to calculate, as shown in the links.
(q3-q1)/2
%E= d/L
Deviation/Frequency of Modulation...times penis...
100 x (standard deviation/mean)
Q3-q1
coefficient of quartile deviation: (Q3-Q1)/(Q3+Q1)
Standard deviation is a way to describe how the data is distributed around the Arithmatic Mean. It is not a simple formula to calculate, as shown in the links.
Arithmatic Mean
(q3-q1)/2
%E= d/L
b-a/6
Coefficient of deviation (CV) is a term used in statistics. It is defined as the ratio of the standard deviation (sigma) to the mean (mu). The formula for CV is CV=sigma/mu.
here is the formula modulation index=peak freq deviation/operating freq. frm this we can calculate freq dev
The formula for standard deviation has both a square (which is a power of 2) and a square-root (a power of 1/2). Both must be there to balance each other, to keep the standard deviation value's magnitude similar to (having the same units as) the sample numbers from which it's calculated. If either is removed from the formula, the resulting standard deviation value will have different units, reducing its usefulness as a meaningful statistic.
Deviation/Frequency of Modulation...times penis...
100 x (standard deviation/mean)