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Calculate the Mean Deviation about Mean ...

Calculate the Mean Deviation about Mean and Standard Deviation for the following distribution:

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[ Calculation of Mean Deviation from Mean and Standard Deviation

`barX=(sumfm)/(sumf)=(4,740)/(50)=94.8`
Mean Deviation from Mean `=(sumf|dbarx|)/(sumf)=(998.4)/(50)=19.968`
Standard Deviation `=sqrt((sumfx^(2))/(sumf))=sqrt((34,248)/(50))=sqrt(684.96)=26.17`
`:.` Mean deviation from mean =19.968.
Standard Deviation =26.17.]
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