document.write( "Question 1174562: Choose a new vehicle sold in the United States in November 2014 at random. The probability distribution for the type of vehicle chosen is given below.\r
\n" ); document.write( "\n" ); document.write( "Vehicle type and Probability:
\n" ); document.write( "Passenger Car 0.46 - Pickup Truck 0.15 - SUV 0.10 - Crossover ? - Minivan 0.05\r
\n" ); document.write( "\n" ); document.write( "1) What is the probability that the vehicle is a crossover?
\n" ); document.write( "2) Given that the vehicle is not a passenger car, what is the probability that it is a pickup truck?
\n" ); document.write( "3) What is the probability that the vehicle is a pickup truck, SU, or minivan?
\n" ); document.write( "Using the same information as the last question. Suppose you select 3 vehicles at random. You want to know the probability that the vehicles are of three different types. Describe how you would carry out a simulation to help answer this question. Do not actually perform the simulation. \n" ); document.write( "

Algebra.Com's Answer #799986 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " The solution by @ewatrrr to the last question is ABSOLUTELY WRONG.\r
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\n" ); document.write( "\n" ); document.write( " Below see my correct solution.\r
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document.write( "Let the letters mean\r\n" );
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document.write( "    P - passenger car\r\n" );
document.write( "    T - truck\r\n" );
document.write( "    S - SUV\r\n" );
document.write( "    C - crossover\r\n" );
document.write( "    M - Minivan.\r\n" );
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document.write( "Then the probability under the last question is the sum of   = 10 addends\r\n" );
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document.write( "    p = p(PTS) + p(PTC) + p(PTM) + p(TSC) + p(TSM) + p(SCM) + . . . \r\n" );
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document.write( "where all combinations of 5 letters taken 3 at a time are used.\r\n" );
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document.write( "Each p(XYZ) is the product of the 3 (three) relevant given probabilities.\r\n" );
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document.write( "So, according to the problem's instruction, I do not calculate, but only EXPLAIN how to build the calculation formula.\r\n" );
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