Sunday, August 1, 2010

how to find standard deviation


Introduction of how to find standard deviation help:
Let us see how to find standard deviation. The idiom of standard deviation is used within the statistics. It is helped to establish the population examples in statistics. The standard deviation is ensuing from the variance of the population. The standard deviation is helped to approximation the many number of populations.

How to Find Standard Deviation:

Let us see how to find standard deviation. Normally, the standard deviation follows some steps, which are shown below. The steps are helped to find the standard deviation.
Step 1: Identify the mean and variance of given data. For example, This can also help us on mobile field solutions
x
M
(x-m)
(x-m)2
5
4
1
1
4
4
0
0
4
4
0
0
3
4
-1
1
Step 2: Identify the sum of (x-m)2.
1+1+0+0 = 2.
Step 3: The known number of N=4, Find N-1.
4-1 = 3.

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