Question #b8f5a
1 Answer
Jun 15, 2015
Probability of getting exactly one prize would be:
Explanation:
Total of 100 tickets
you buy 4 tickets
and there are 6 prizes
you are looking for all the different ways you can win 1 prize
thus 6 out of the 100 tickets are winning tickets.
Thus you are wanting to choose 1 out of the 6 winning tickets, and then you want to choose 3 out of the 94 loosing tickets.
The amount of ways you can do this is:
then you will divide that by the amount of ways you can choose 4 out the 100 tickets, which is:
Therefor the probability of getting exactly 1 winning ticket is: