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| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks Ago |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
An archaeological excavation at Burnt Mesa Pueblo showed that about 10% of the flaked stone objects were finished arrow points†. How many flaked stone objects need to be found to be 90% sure that at least one is a finished arrow point? (Hint: Use a calculator and note thatP(r= 1)= 0.90 is equivalent to 1-P(0)= 0.90, orP(0)=0.10.)
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