Mean Deviation for Discriet series

 MEAN DEVIATION

We have completed mean Deviation for individual series. Now we entered into mean Deviation for Discriet series 
In this discrete series it will take some longer time than individual series.

The formulae to calculate mean Deviation for a  discrete series are as follow










In an example I am going to tell about how to calculate Mean Deviation about mean.
This type of sums are very complicated to write on a blog. 
So I am adding an image to this blog which definately helps you.

In this sum there is question which is in Discrete series. First we have find mean of the basic given data. And then you have subtract it from given
variable and apply modulas () to it and then multiply with given frequency. By applying formula which I have noted there.




















       
Assignment:-  you have to find Mean Deviation for the same question above, by using the required formula, given.
Also find coefficient of MD about mean and median.
To check your answer I will provide you a solution pdf.

MEAN DEVIATION IN CONTINUOUS SERIES.


After completion of assignment given, you are ready to solve mean deviation about mean in continuous series.
Here i am leaving a pic which helps you to calculate MD in continuous series.




























Observe the above pic carefully, just calculate mean first and then calculate MD

MD about mean = ∑ f \ X - mean\ ] / ∑f

and also observe calculation of coefficient of mean deviation about mean.

mean deviation about mean in all series is completed. ☺☺😍

for any doubts comment.
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for miore chapters visit our blog www.statesticslover.blogspot.com

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