document.write( "Question 341115: Hi I have this problem, I tried to solve for many different ways but I couldn't find the correct solution my teacher said. Please I need help. Thanks.\r
\n" ); document.write( "\n" ); document.write( "There are 20 people in my house, what is the probability that two or more will have the same last 5 digits in their Driver License (in the same order)? Assume that all digits 0 to 9 are equally likely, and give your answer to within ± 0.000001. \n" ); document.write( "
Algebra.Com's Answer #244247 by stanbon(75887)\"\" \"About 
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There are 20 people in my house, what is the probability that two or more will have the same last 5 digits in their Driver License (in the same order)? Assume that all digits 0 to 9 are equally likely, and give your answer to within ± 0.000001.
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\n" ); document.write( "# of 5 digit numbers: 10^5
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\n" ); document.write( "P(one license is the same as another) = 1/10^5
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\n" ); document.write( "Binomial Problem with p = 1/10^5 with n = 20
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\n" ); document.write( "P(2<=x<=20) = 1 - binomcdf(20,1/10^5,1)
\n" ); document.write( "= 0.000000018998...
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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