CHAPTER 2

Relative Frequency = Frequency / sample size. Density = Relative Frequency / class width. The Range: R = the largest data - the smallest data The Interquartile range: IQR = Q3 - Q1. Coefficient of variation: CV=100() The sample mean of X's: . The sample variance of X's: . The sample standard deviation of X's: Mutually exclusive or Disjoint: ................
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