Multiple choice

Which of the following is a measure of the extent to which a probability distribution of a real-valued random variable leans to one side of the mean?

  1. T-test

  2. Ratio estimates

  3. Skewness

  4. Median

  5. Standard deviation
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C Correct answer
Explanation

Skewness is a measure of the extent to which a probability distribution of a real-valued random variable leans to one side of the mean. The skewness value can be positive or negative, or even undefined.

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