document.write( "Question 381488: Suppose you have a set of three four sided dice. Your friend wants to bet that he/she can roll the number combination 1,2,3 (any combination i.e. no die shows a four, and no die duplicates another). She/he wants to roll the dice one hundred times and each time the combination 1,2,3 comes up you will give him/her one dollar, each time it does not come up she/he will give you 10 cents. How much would you expect to win or lose based on statistically theory. \n" ); document.write( "
Algebra.Com's Answer #270577 by stanbon(75887) ![]() You can put this solution on YOUR website! Suppose you have a set of three four sided dice. Your friend wants to bet that he/she can roll the number combination 1,2,3 (any combination i.e. no die shows a four, and no die duplicates another). She/he wants to roll the dice one hundred times and each time the combination 1,2,3 comes up you will give him/her one dollar, each time it does not come up she/he will give you 10 cents. How much would you expect to win or lose based on statistically theory. \n" ); document.write( "------------- \n" ); document.write( "# of ways to get 1,2,3: 3*2*1 = 6 \n" ); document.write( "# of possible outcomes: 6^3 = 216 \n" ); document.write( "------------- \n" ); document.write( "P(getting 1,2,3) = 6/216 = 3/108 = 1/36 \n" ); document.write( "============================================ \n" ); document.write( "Expected winnings for me = (-10)(1/36) + (0.10)(35/36) \n" ); document.write( "= [-10+3.5]/36 \n" ); document.write( "= -0.18 \n" ); document.write( "----- \n" ); document.write( "I can expect to lose 18 cents each time the dice are thrown. \n" ); document.write( "I can expect to lose $18 in 100 throws of the dice. \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |