L
Love to Learn
Guest
I really need help on some simple college probablility quesitons. Any help would be greatly appreciated!
Here are the problems I've been trying to figure out:
1.
A box contains 22 red marbles and 3 green marbles. Three marbles are selected at random, one after the other, without replacement.
What is the probability that exactly two of the three apples are red?
2.
Two fair dice are thrown. The sum of these two numbers is S. Find the probablility that...
S is less than 8
at least one die shows a 3
at least one die shows a 3, given that S is less than 8.
3.
Football Tennis Hockey
Male 5 3 3
Female 4 2 3
Each student only plays one sport.
Calculate the probability that the student is a male or is a tennis player.
Given that the student selected is female, calculate the probability that the student does not play football.
Here are the problems I've been trying to figure out:
1.
A box contains 22 red marbles and 3 green marbles. Three marbles are selected at random, one after the other, without replacement.
What is the probability that exactly two of the three apples are red?
2.
Two fair dice are thrown. The sum of these two numbers is S. Find the probablility that...
S is less than 8
at least one die shows a 3
at least one die shows a 3, given that S is less than 8.
3.
Football Tennis Hockey
Male 5 3 3
Female 4 2 3
Each student only plays one sport.
Calculate the probability that the student is a male or is a tennis player.
Given that the student selected is female, calculate the probability that the student does not play football.