The figure below is a histogram showing the distribution of blood pressure for all 14,148 women in

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The figure below is a histogram showing the distribution of blood pressure for all 14,148 women in the Drug Study (section 5). Use the histogram to answer the following questions:

(a) Is the percentage of women with blood pressures above 130 mm around 25%, 50%, or 75%?

(b) Is the percentage of women with blood pressures between 90 mm and 160 mm around 1%, 50%, or 99%?

(c) In which interval are there more women: 135-140 mm or 140-150 mm? P-968

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Statistics

ISBN: 9780393522105

4th Edition

Authors: David Freedman, Robert Pisani, Roger Purves

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