Q4 of 40 Page 935

Using short cut method, find the mean, variation and standard deviation for the data :

To find: MEAN



Now,



=19


To find: VARIANCE





= 43.4


To find: STANDARD DEVIATION




= 6.58


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Using short cut method, find the mean, variation and standard deviation for the data :

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Using short cut method, find the mean, variation and standard deviation for the data :