document.write( "Question 930584: Past experience indicates that an average number of 6 customers per hour stop for gasoline at a gasoline pump. What is the probability of (a) three customers stopping in any hour? (b) Three customers or less in any hour? \n" ); document.write( "
Algebra.Com's Answer #565111 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
avg = 6 per hour
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\n" ); document.write( "POISSON Distribution
\n" ); document.write( "P(x = 3) = poissonpdf(6,3)= .0892
\n" ); document.write( "P(x ≤ 3) = poissoncdf(6,3)= .1512
\n" ); document.write( "Using a TI calculator 0r similarly a Casio fx-115 ES plus
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\n" ); document.write( "Recommend Using stattrek.com to check Results
\n" ); document.write( "until You are familiar with Using Your Calculator.
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