document.write( "Question 852774: 11.1% of the population is 65 or older . Find the probability that the following number of persons selected at random from 20 people are 65 or older . The probability that exactly 4 people are 65 or older is ??? \n" ); document.write( "

Algebra.Com's Answer #513660 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "p = .111, n = 20
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document.write( "Using TI ****(highly recommended for cumulative probabilities)
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document.write( "This singular
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document.write( "P(x = 4) = binompdf(20, .111, 4)
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document.write( "Or
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document.write( "Using  
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document.write( "P(x = 4 )= 4845(.111)^4(.889)^16 \n" );
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