document.write( "Question 968125: Penny has 3 red 5 green & 7 black pencils in her case. She takes 1 pencil out
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Algebra.Com's Answer #591671 by Edwin McCravy(20060) $\"\"$ $\"About$

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Penny has 3 red 5 green & 7 black pencils in her case. She takes 1 pencil out
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document.write( "She has 3+5+7 = 15 pencils, so\r\n" );
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document.write( " or  of the pencils are\r\n" );
document.write( "red, so  of the time she will pick a red pencil.\r\n" );
document.write( " of 30 times is 6 times. So she would expect to\r\n" );
document.write( "get a red pencil about 6 of the 30 times.\r\n" );
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document.write( " or  of the pencils are\r\n" );
document.write( "green, so  of the time she will pick a green pencil.\r\n" );
document.write( " of 30 times is 10 times. So she would expect to\r\n" );
document.write( "get a green pencil about 10 of the 30 times.\r\n" );
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document.write( " of the pencils are black, so  of the time she will pick a black pencil.\r\n" );
document.write( " of 30 times is 14 times. So she would expect to\r\n" );
document.write( "get a black pencil about 14 of the 30 times. \r\n" );
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document.write( "[ Of course she won't get exactly that with every 30 times she gets a pencil,\r\n" );
document.write( "but it she took out a pencil 30 times every day for a year, and kept a record\r\n" );
document.write( "of how many of each color she drew out every day, the average would be very\r\n" );
document.write( "close to an average of 6 reds per day, 10 greens, per day, and 14 blacks per\r\n" );
document.write( "day.  Not exactly, but close.]  \r\n" );
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document.write( "Edwin

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