Saturday 18 August 2012

Standard Deviation Calculator

In the previous post we have discussed about sample standard deviation calculator and In today's session we are going to discuss about Standard Deviation Calculator. Hi friends, in this blog we will discuss the definition and calculation of Standard Deviation Calculator. In mathematics, Standard Deviation can be defined as the variation exists from the given mean value or in other word expected value  or average value. Generally it is known by symbol sigma as (σ). Now we will understand the concept Standard Deviation Calculator. It is a online tool or machine which is used to find the value of standard deviation. Using this online machine we can get the vlaue of standard deviation within a second. In other word this online machine will gives us the value of standard deviation of given set of data in one click. To find the value of deviation with the help of calculator we have to understand some steps so that we can easily the answer. (know more about Standard Deviation Calculator, here)
Steps to follow to find the value of standard deviation are mention below:

Step 1: Using this online machine we can easily find the vlaue of standard deviation. so we use the formula as ∑ = √[(1 / N) Σi (xi - μ) 2].

Step 2: Here the value of ‘σ’ shows standard deviation, vlaue of ‘N’ shows the number of data Points and value of ‘Xi’ shows the Random Variable in which the value ‘i’ lies between 1 to N.

Step 3: In above formula ‘μ’ shows the mean value of the given data set. At last we have to calculate the exact value of σ. This above formula is predefined in this online machine. We have to put the data values in the text box and press the solve button to get the answer. It is very easy to use.

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