For a column in your dataset, your data analysis tool is telling you that the standard deviation is zero. What does this say about the data in that column?

For a column in your dataset, your data analysis tool is telling you that the standard deviation is zero. What does this say about the data in that column?



  • all values are zero
  • all values are the same
  • all values are different
  • that statistics are worthless



Answer: all values are the same


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