Abag contains 10 marbles-three red, three blue, and four green. What is the probability of pulling a red marble, not replacing it, and then pulling a blue marble?
1 Answer
Dec 21, 2016
Explanation:
For the first draw, we're looking for the odds of pulling a red marble. There are 3 red in a bag of 10 marbles, so the odds are:
Then we want to pull a blue from the bag. There are 3 blue marbles and the bag now has 9 marbles:
And so now we multiply these:
