Multiple choice

Which of the following is a measure of the shape of the distribution?

  1. Pearson coefficient

  2. Arithmetic mean

  3. Standard deviation

  4. Kurtosis

  5. Quadrant Count Ratio (QCR)
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D Correct answer
Explanation

kurtosis is any measure of the peakedness of the probability distribution of a real-valued random variable. In a similar way to the concept of skewness, kurtosis is a descriptor of the shape of a probability distribution and, just as for skewness, there are different ways of quantifying it for a theoretical distribution and corresponding ways of estimating it from a sample from a population.

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