document.write( "Question 945730: If 5 cards are drawn from a deck of 52 cards. Find the probability of obtaining\r
\n" ); document.write( "\n" ); document.write( "a) 4 cards of a single suit and 1 card of a different suit.
\n" ); document.write( "I think the answer is 13C4 * 48C1 divided by 52C5 ?
\n" ); document.write( "13 because there are 13 cards in one suit and you need 4 of them.\r
\n" ); document.write( "\n" ); document.write( "48 because there are 48 cards left from the 4 of a single suit you have.\r
\n" ); document.write( "\n" ); document.write( "divided by 52 because that is the total number of cards you have and you want 5\r
\n" ); document.write( "\n" ); document.write( "I am really not sure because my teacher does not explain things. Lectures us on it once and then he moves on.\r
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Algebra.Com's Answer #576893 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
If 5 cards are drawn from a deck of 52 cards. Find the probability of obtaining
\n" ); document.write( "a) 4 cards of a single suit and 1 card of a different suit.
\n" ); document.write( "I think the answer is 13C4 * 48C1 divided by 52C5 ?
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document.write( "No, that's not correct.\r\n" );
document.write( "We choose the suit 4C1 ways.\r\n" );
document.write( "For each of those ways, we can pick the 5 cards 13C4 ways.\r\n" );
document.write( "For each of those ways, there are 39 cards of other suits \r\n" );
document.write( "(not 48), so we can choose it 39C1 ways.\r\n" );
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document.write( "Answer \"4C1%2A13C4%2A39C1%2F52C5\"  \r\n" );
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\n" ); document.write( "13 because there are 13 cards in one suit and you need 4 of them.
\n" ); document.write( "48 because there are 48 cards left from the 4 of a single suit you have.
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document.write( "That's one of your errors.  You must subtract all 13 cards of the\r\n" );
document.write( "suit you chose for the four from 52, which leaves 39.  Subtracting only\r\n" );
document.write( "4 leaves cards of the same suit.  Your other error was leaving out the\r\n" );
document.write( "4C1 for the ways to choose the suit for the four of the same suit.\r\n" );
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\n" ); document.write( "divided by 52 because that is the total number of cards you have and you want 5
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document.write( "That part is correct.  \r\n" );
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\n" ); document.write( "I am really not sure because my teacher does not explain things. Lectures us on
\n" ); document.write( "it once and then he moves on.
\n" ); document.write( "
\r\n" );
document.write( "Teachers are givern a syllabus of material to cover and they must cover it all\r\n" );
document.write( "in the time they are allotted, or else their supervisors will ask them why they\r\n" );
document.write( "did not cover all the material, and they will be in trouble.  You should go see\r\n" );
document.write( "your teacher outside of class and get him to give you additional help.  He will\r\n" );
document.write( "be glad to, I'm sure. \r\n" );
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document.write( "Edwin
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