Chapter Three, Sections 1 4, & 6: Measures of Central Tendency and Location: mean, median, mode, percentiles, quartiles and deciles. x 53 55 70 58 64 57 53 .
11 2 2 n n nx nx xpooled 17 . Deciles Percentiles Descriptive Statistics I 26 Quartiles split a set of ordered data into four parts.
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