document.write( "Question 344831: An airport limousine can accommodate up to 4 passengers on any trip. The company will accept a maximum of 6 reservations for a trip and a passenger must have a reservation. From previous records, 45% of those making reservations do not appear for the trip. \r \n" );
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document.write( "a) If 6 reservations are made, what is the probability that at least 1 person cannot be accommodated on the trip?\r \n" );
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document.write( "b) If 6 reservations are made, what is the expected number of available places when the limousine departs?\r \n" );
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document.write( "c) Suppose the probability distribution of the number of reservations made is given in the accompanying table.\r \n" );
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document.write( "Number of reservations 3 4 5 6 \n" );
document.write( "Probability 0.1 0.2 0.3 0.4\r \n" );
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document.write( "Let X denote the number of passengers on a randomly selected trip. Obtain the probability mass function of X. \n" );
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