Re: normal distribution doubts

s99999999s2003@xxxxxxxxx wrote:
If, after calculation i find that there is skewness value other than
0, then i can say that the data doesn't follow normal distribution.
That means also i cannot use empirical rule but have to use chebyshev
inequality for approximating the no. of data values within some values
of std deviation from the mean, is that correct?

Not necessarily. Statistical variability will also cause the observed skewness to be non-zero. The question you need to answer is whether the difference you observe could reasonably happen by chance.
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