题目

一道算概率的英文题3
Dice,Lotteries and Lotto
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Question 1:
Sic bo (骰宝),also known as tai sai (大细),dai siu (大小),big and small or hi-lo,is a game of chance of ancient Chinese origin played with three dice.Grand hazard and chuck-a-luck are similar games originating in Europe.In each of these games,three (ordinary six-sided) dice are rolled and bets are made on the combinations of numbers that turn up.
(a) A bet on Any Triple wins if all three dice show the same number.What is the probability of winning on such a bet?
(b) At Star City Casino in Sydney a bet on Any Triple pays odds of 31 to 1.What is the house margin on this type of bet?A bet on a specific triple (eg 1,1,1) pays 180 to 1.Is this

提问时间：2020-10-31

答案

A.P=6/(6*6*6/A3 3)B.payoff to odds:P=3*3*3/(6*6*6/A3 3)E(x1)=P*31Specific triple:P=6/(6*6*6/A3 3)E(x2)=p*180Compare the values of E(x1) and E(x2),The one with higher E(x) is preferred.C.P=1*1*1/(6*6*6...