The following are the percentages of ash content in 12


The following are the percentages of ash content in 12 samples of coal found in close proximity:

9.2, 14.1, 9.8, 12.4, 16.0, 12.6, 22.7, 18.9, 21.0, 14.5, 20.4, 16.9

Find the

(a) sample mean, and

(b) sample standard deviation of these percentages.

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Basic Statistics: The following are the percentages of ash content in 12
Reference No:- TGS01197415

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