For any data set,the variance is the average of the sum of the squared deviations between each observation and the median.
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Q140: Any set of ordinal,interval or ratio level
Q141: The 30th percentile,P30,is a value such that
Q142: The 5-number summary divides a set of
Q143: The first quartile,Q1,is a number such that
Q144: A variable measured at the interval or
Q146: The Empirical rule is frequently applied as
Q147: In a bell-shaped distribution,there is no difference
Q148: The standard deviation,as a measure of variation
Q149: Each set of data has 100 percentiles.
Q150: The mean,median,the second quartile,and the 50th percentile
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