a bag contains 2 red, 3 yellow, and 5 green sweets. Without looking, Mary takes one out of the bag and eats i. She then takes out a second sweet. If the first was green, what is the probability that the second sweet is also green?
+1667 We have a total of 10 sweets.
There are 5 green, so picking a green sweet out of all in the bag has a possibility of 5/10, or 1/2.
Now that Mary's taken out one sweet, there are 9 total left, and 4 green ones left. This makes the probability of picking a green sweet the second time 4/9.
