document.write( "Question 1047946: Hi, my teacher gave us this problem for homework, and I'm having a little bit of trouble solving it:
\n" ); document.write( "Bob has 3 ways to get to work (train, car, and teleport). He independently chooses 1 of the 3 to and from work. What is the probability that he teleports at least once during a day? \n" ); document.write( "

Algebra.Com's Answer #663537 by ikleyn(52790) $\"\"$ $\"About$

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\n" ); document.write( "Hi, my teacher gave us this problem for homework, and I'm having a little bit of trouble solving it:
\n" ); document.write( "Bob has 3 ways to get to work (train, car, and teleport). He independently chooses 1 of the 3 to and from work.
\n" ); document.write( "What is the probability that he teleports at least once during a day?
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document.write( "Let me use T= train, C = car and P = teleport for brevity.\r\n" );
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document.write( "The table of possible outcomes is\r\n" );
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document.write( "To work   To home\r\n" );
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document.write( "  T          T\r\n" );
document.write( "  T          C\r\n" );
document.write( "  T          P   (*)\r\n" );
document.write( "  C          T\r\n" );
document.write( "  C          C\r\n" );
document.write( "  C          P   (*)\r\n" );
document.write( "  P          T   (*)\r\n" );
document.write( "  P          C   (*)\r\n" );
document.write( "  P          P   (*)\r\n" );
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document.write( "The number of lines where you see the symbol P is 5. (They are marked as (*)).\r\n" );
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document.write( "So, the probability under the question  is .\r\n" );
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