document.write( "Question 208442: Let x be the absolute difference between the number of heads and the number of trials obtained when a coin is tossed n times. What are the possible values of the random variables x? Find expressions for the probabilities of the first three and last three values of x. \n" ); document.write( "
Algebra.Com's Answer #157672 by stanbon(75887)\"\" \"About 
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Question: Is that \"trials\" or tails?
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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