Computer use Mrs. Causey asked her students how much time they had spent using a computer during

Question:

Computer use Mrs. Causey asked her students how much time they had spent using a computer during the previous week. The following figure shows a cumulative relative frequency graph of her students’ responses.

(a) At what percentile does a student who used her computer for 7 hours last week fall?

(b) Estimate the interquartile range (IQR) from the graph. Show your work.

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Related Book For  book-img-for-question

The Practice Of Statistics

ISBN: 9781464108730

5th Edition

Authors: Daren S. Starnes, Josh Tabor

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