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Which is better to describe the variability of scores on a curve: standard deviation or variance? Why? Which measure of central tendency is radically affected

Which is better to describe the variability of scores on a curve: standard deviation or variance? Why?
Which measure of central tendency is radically affected by outlier scores?
Which measure of central tendency would you use to report whether males or females like sugar more?
What does "median" income mean?
What is meant by the range of a distribution?

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