SOLUTION: Many lotteries are based on random draws of numbers. For each set of rules described, determine how many possible different results exist, then find the probability of a player win
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Question 1192236: Many lotteries are based on random draws of numbers. For each set of rules described, determine how many possible different results exist, then find the probability of a player winning if they purchase a single ticket.
Express all probabilities as decimals, rounded to six places.
Five numbers are drawn from twenty options; players must match the set of numbers chosen (in any order).
Possible draw results:
Probability of winning on 1 ticket: Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! this is 5!/20C5
=0.00794 is probability
or (5/20(4/19)(3/18)(2/17)(1/16)*120 (ways they can appear)=0.007740
