document.write( "Question 165970: can anyone please help me with this problem:\r
\n" ); document.write( "\n" ); document.write( "Use the given table to find the probability of the indicated event. Round your answer to the nearest thousandth.\r
\n" ); document.write( "\n" ); document.write( "College students were given three choices of pizza toppings and asked to choose one favorite. The following table shows the results.\r
\n" ); document.write( "\n" ); document.write( "toppings; freshman; sophomore; junior; senior
\n" ); document.write( "cheese; 10; 12; 24; 21
\n" ); document.write( "meat; 22; 21; 12; 10
\n" ); document.write( "veggie 12l; 10 22; 21\r
\n" ); document.write( "\n" ); document.write( "A randomly selected student prefers a meat topping.\r
\n" ); document.write( "\n" ); document.write( "a. .324
\n" ); document.write( "b. .0.61
\n" ); document.write( "c. .330
\n" ); document.write( "d. .185
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Algebra.Com's Answer #122315 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
In order to find the probability, we need to calculate the totals first. So, for instance, adding up all of the numbers in the freshman column gives us 44, which means that there are 44 freshman. Adding up the number of cheese lovers gives us 67 cheese lovers. \r
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\n" ); document.write( "\n" ); document.write( "Do this with both the rows AND columns. So you should have a total of 44 freshman, 43 sophomores, 58 juniors, and 52 seniors (these are the totals in the bottom row). \r
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\n" ); document.write( "\n" ); document.write( "Also, you should have a total of 67 cheese lovers, 65 meat lovers, and 65 veggie lovers (these are the totals in the right-hand column). \r
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\n" ); document.write( "\n" ); document.write( "So let's add these totals in the table:\r
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document.write( "toppings      freshman     sophomore     junior     senior    total\r\n" );
document.write( "cheese          10            12           24         21       67\r\n" );
document.write( "meat            22            21           12         10       65\r\n" );
document.write( "veggie          12            10           22         21       65\r\n" );
document.write( "             \r\n" );
document.write( "total           44            43           58         52       197\r\n" );
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\n" ); document.write( "\n" ); document.write( "Now add up either the totals from the right-hand column or the bottom row to get a total of 197 college students. So 197 college students were sampled. \r
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\n" ); document.write( "\n" ); document.write( "So the probability of selecting a meat lover is \r
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document.write( "                 number of meat lovers       65\r\n" );
document.write( "P(meat lover) = ------------------------ = ------ = 0.32994\r\n" );
document.write( "                total number of students     197\r\n" );
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\n" ); document.write( "\n" ); document.write( "So rounding to the nearest thousandth, the answer is 0.330 which means that there is a 33% chance of picking a meat lover.\r
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\n" ); document.write( "\n" ); document.write( "So the answer choice is C) 0.330
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