Is the use of significant figures in each of the following statements appropriate? Why or why not?

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Is the use of significant figures in each of the following statements appropriate? Why or why not?
(a) Apple sold 22,727,000 iPods during the last three months of 2008.
(b) New York City receives 49.7 inches of rain, on average, per year.
(c) In the United States, 0.621% of the population has the surname Brown.
(d) You calculate your grade point average to be 3.87562.
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Chemistry The Central Science

ISBN: 978-0321696724

12th edition

Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward

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