Eight hundred insects were weighed, and the resulting measurements, in milligrams, are summarized in the boxplot below. (a)What

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问题 Eight hundred insects were weighed, and the resulting measurements, in milligrams, are summarized in the boxplot below.

(a)What are the range, the three quartiles, and the interquartile range of the measurements?
(b)If the 80th percentile of the measurements is 130 milligrams, about how many measurements are between 126 milligrams and 130 milligrams?

选项

答案(a)range = 41, Q₁= 114, Q₂= 118, Q₃= 126, interquartile range =12 (b)40 measurements

解析

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