=+. The same poll as in Exercise 9 has asked about social networking over several years and

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=+. The same poll as in Exercise 9 has asked about social networking over several years and for different age groups.

Here is a table of responses:

May-2010 Aug-2011 Aug-2012 Total Age 18–29 273 277 293 843 30–49 325 362 388 1075 50–64 259 270 314 843 Total 857 909 995 2761

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Business Statistics Plus Pearson Mylab Statistics With Pearson Etext

ISBN: 978-1292243726

3rd Edition

Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman

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