SOLUTION: If you are rolling a die and counting aces (an ace on a die is a 1), how many times should you roll the die in order to have a better than 80% chance of getting at least one ace?
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-> SOLUTION: If you are rolling a die and counting aces (an ace on a die is a 1), how many times should you roll the die in order to have a better than 80% chance of getting at least one ace?
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Question 289840: If you are rolling a die and counting aces (an ace on a die is a 1), how many times should you roll the die in order to have a better than 80% chance of getting at least one ace? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 80%=4/5
4/5=x/6
24=5x
24/5=x
4.8=x
so you need to roll the die at least 5 times for a better than 80% chance of rolling an ace.
each roll is 1/6 chance
x/6>4/5
