According to the Empirical Rule, about 95% of the observations lie within plus and minus 2.00 standard deviations.
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Q1: For a set of data arranged or
Q7: The variance is the mean of the
Q8: The mean deviation is the sum of
Q10: The sum of the deviations from the
Q11: A set of ordinal-, interval-, or ratio-level
Q15: The mode is the value of the
Q16: Extremely high or low scores affect the
Q17: For any distribution, there are an equal
Q18: Variation describes the degree of dispersion in
Q19: The arithmetic mean is the sum of
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