document.write( "Question 150592This question is from textbook a survey of mathematics with applications
\n" ); document.write( ": I'm really having diffuculties trying to understand this question.
\n" ); document.write( "11. (3 pts) The results of a survey for an airline are shown below\r
\n" ); document.write( "\n" ); document.write( "Traveler Male Female Total
\n" ); document.write( "Business 57 92 149
\n" ); document.write( "Vacation 72 74 146
\n" ); document.write( "Total 129 166 295\r
\n" ); document.write( "\n" ); document.write( "Use the chart to find the probability that the traveler was
\n" ); document.write( "a) male
\n" ); document.write( "b) on vacation given the traveler was male
\n" ); document.write( "c) female given the traveler was on business
\n" ); document.write( " (Give solutions as fractions in lowest terms.)\r
\n" ); document.write( "\n" ); document.write( "can someone please help me?\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #110542 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "I'm really having diffuculties trying to understand\r\n" );
document.write( "this question.\r\n" );
document.write( "\r\n" );
document.write( "11. (3 pts) The results of a survey for an airline \r\n" );
document.write( "are shown below:\r\n" );
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document.write( "Traveler   |   Male |  Female | Total\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Business   |    57  |   92    |  149\r\n" );
document.write( "Vacation   |    72  |   74    |  146\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Total      |   129  |  166    |  295\r\n" );
document.write( "Use the chart to find the probability that the traveler was \r\n" );
document.write( "a)	male \r\n" );
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document.write( "Well, let's see how many of the Total 295 were males.\r\n" );
document.write( "I'll color the Male column red:\r\n" );
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document.write( "Traveler   |   Male |  Female | Total\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Business   |    57  |   92    |  149\r\n" );
document.write( "Vacation   |    72  |   74    |  146\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Total      |   129  |  166    |  295\r\n" );
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document.write( "You see that there are 129 Males out of 295 Travelers.\r\n" );
document.write( "So you put 129 ove 295 and get the fraction \r\n" );
document.write( "and that's the answer.\r\n" );
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document.write( "b)	on vacation given the traveler was male\r\n" );
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document.write( "Since we are given that the traveler was male, then we \r\n" );
document.write( "can eliminate everything but just what is given, the\r\n" );
document.write( "Male column. So all that remains in the chart is this:\r\n" );
document.write( "\r\n" );
document.write( "Traveler   |   Male |  Female | Total\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Business   |    57  |         |     \r\n" );
document.write( "Vacation   |    72  |         |  \r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Total      |   129  |         |  \r\n" );
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document.write( "So there are 72 males on on vacation out of 129 given males.\r\n" );
document.write( "So we put 72 over 129 and get  and reduce\r\n" );
document.write( "that reduces to \r\n" );
document.write( "\r\n" );
document.write( "-------------------------\r\n" );
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document.write( "c)	female given the traveler was on business \r\n" );
document.write( "       (Give solutions as  fractions in lowest terms.)\r\n" );
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document.write( "Since we are given that the traveler was on business, we\r\n" );
document.write( "can eliminate everything but just what is given, the\r\n" );
document.write( "Business row. So all that remains in the chart is this:\r\n" );
document.write( "\r\n" );
document.write( "Traveler   |   Male |  Female | Total\r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Business   |    57  |   92    |  149\r\n" );
document.write( "Vacation   |        |         |  \r\n" );
document.write( "-------------------------------------\r\n" );
document.write( "Total      |        |         |  \r\n" );
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document.write( "So there are 92 females on business out of 149 given travelers on\r\n" );
document.write( "business. So we put 92 over 129 and get  which\r\n" );
document.write( "doesn't reduce.\r\n" );
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document.write( "Edwin

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