If you throw a die, you are given twice as many rupees as the number that turns up on the die if it is even; thrice as many rupees as the number that turns up on the die, if it is add. What will be your expected value per throw in the long run?

Options
- 10
- 9.5
- 11
- 8.5

CORRECT ANSWER : 8.5

Discussion Board
Solution for expected value per throw in the long run

Expected value per throw means the average value of all the Occurance in this contest. Given twice rupees when it is even and thrice rupees when it is odd,
[(1*3) +(2*2) +(3*3) +(4*2) +(5*3) +(6*2)]/6
= (3+4+9+8+15+12) /6
= 51/6
= 8.5


Ganesh Banoth 09-3-2021 03:01 PM

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