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Standard Deviation about Mean for Continuous Frequency Distributions

Why absolute ...

Question

Why absolute error is found by standard deviation method and not the method used in ncert and all other books which is relatively easy?Also we get different answers by the two methods which isnt good...

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Solution

For calculating error we uses standard deviation methode.
But for basic practice only mean or average methode is provided in NCERT and other boo

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Standard Deviation about Mean for Continuous Frequency Distributions

Standard XII Mathematics

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