document.write( "Question 382163: 5 wooden blocks numbered 1,2,3,4,5 are placed by a young child in a row. What is the probability that the numbered formed is...\r
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Algebra.Com's Answer #270935 by Edwin McCravy(20060) $\"\"$ $\"About$

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5 wooden blocks numbered 1,2,3,4,5 are placed by a young child in a row. What is the probability that the numbered formed is...
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document.write( "First we will calculate the denominator of the probability for it is the same for both problems.\r\n" );
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document.write( "It is the number of ways to pick 5 things from 5 things and position them. \r\n" );
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document.write( "Thats \"5 Position 5\" or 5P5 =  \r\n" );
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\n" ); document.write( "1. Less than 20,000?
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document.write( "We must choose the first digit to be 1. Then we have to pick 4 of the\r\n" );
document.write( "remaining 4 digits and position them\r\n" );
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document.write( "That's \"4 position 4\" or \r\n" );
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document.write( "So the probability is 24 out of 120 or \r\n" );
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\n" ); document.write( "2. More than 40,000?
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document.write( "We must choose the first digit as 4 or 5.  That's 2 ways to pick the\r\n" );
document.write( "first digit. For each of those 2 ways to pick the first digit, we have \r\n" );
document.write( "to pick 4 of the remaining 4 things and position them. So there are \r\n" );
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document.write( "2*(4P4) = \r\n" );
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document.write( "So the probability is 48 out of 120 or \r\n" );
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document.write( "Edwin

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