Standard deviation of sequence of numbers is zero if and only if values are equal to the mean
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This means that for every i, the term (xi - x )2 = 0. This means that every data value is equal to the mean. This result along with the one above allows us to say that the sample standard deviation of a data set is zero if and only if all of its values are identical...........................
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Answer:
This means that for every i, the term (xi - x )2 = 0. This means that every data value is equal to the mean. This result along with the one above allows us to say that the sample standard deviation of a data set is zero if and only if all of its values are identical...........................
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