document.write( "Question 813322: A salesperson has a 50% chance of making a sale to any customer called upon. If 4 calls are made:
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\n" ); document.write( "B) what is the probability that at least two sales are made (P(xis greater then equal to 2) )?
\n" ); document.write( "C) what is the average number of sales? \n" ); document.write( "

Algebra.Com's Answer #489596 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "50% chance of making a sale to any customer called upon.
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document.write( "4 calls made
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document.write( "averages 2 sales per 4 calls, P(≥ 2)
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document.write( "Poisson Distribution
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document.write( "P(x μ) =  
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document.write( "P(≥ 2) =  1 - P(0) - P(1)
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document.write( "P(0)= = .1353
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document.write( "P(1)= = .2707
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document.write( "P(≥2) =  1 - P(0) - P(1) = 0.5940
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