## Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Refer to the answer of Exercise 13, the expect value to win is now $\frac{3}{13}\times10-\frac{1}{13}\times20+\frac{1}{13}\times(2+3+4+5+6+7+8+9+10)=64/13=4.92$ So an amount of 4.92 dollars should be charged for the game to be fair.