The lower quartile of a random variable X is the smallest q so that P(X ¤ q)

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The lower quartile of a random variable X is the smallest q so that P(X ‰¤ q) ‰¥ 0.25. (This is analogous to the lower edge of the box in the boxplot.) What€™s the lower quartile of X?

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Statistics For Business Decision Making And Analysis

ISBN: 9780321890269

2nd Edition

Authors: Robert Stine, Dean Foster

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Question Posted: Jul 14, 2015 08:48 AM

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The lower quartile of a random variable X is the smallest q so that P(X ¤ q)

Question:

p(x) 0.4H 0.3 0.1 2 0 p(x) 0.25 0.20 0.15 0.10 У 0.00 -3 -2 1 2 3 p(x) 0.3아 0.25- 0.20 0.15 0.1아 0.05 0.00 -3 2O1 2 3 p(x) 0.30 0.25 0.2아 0.15 0.1아 0.05- -3 -2 1 2 3

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Statistics For Business Decision Making And Analysis

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