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As example: how can you know if the datasets are parametric or non-parametric?.... easy: median, average and mode have the answer....

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If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
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If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good
If short and good, two times good