document.write( "Question 1078846: if you toss three fair quarters, what is the probability that all will land on tails \n" ); document.write( "
Algebra.Com's Answer #693252 by jim_thompson5910(35256)\"\" \"About 
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H = event of landing on heads
\n" ); document.write( "T = event of landing on tails\r
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\n" ); document.write( "\n" ); document.write( "Saying something like TTT means landing on three tails in a row. Saying P(TTT) is notation to mean \"the probability of landing three tails\" and P(T) is the probability of landing on tails for any given coin taken individually. Because each toss doesn't affect one another, we know that P(T and T and T) = P(T)*P(T)*P(T) allowing us to say\r
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\n" ); document.write( "\n" ); document.write( "P(TTT) = P(T and T and T)
\n" ); document.write( "P(TTT) = P(T)*P(T)*P(T)
\n" ); document.write( "P(TTT) = (1/2)*(1/2)*(1/2)
\n" ); document.write( "P(TTT) = 1/8
\n" ); document.write( "P(TTT) = 0.125\r
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\n" ); document.write( "\n" ); document.write( "The probability as a fraction is 1/8
\n" ); document.write( "The probability as a decimal is 0.125
\n" ); document.write( "The probability as a percentage is 12.5%\r
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\n" ); document.write( "\n" ); document.write( "The answer format will depend on what your teacher wants. \n" ); document.write( "
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