SOLUTION: A bag contains 36 red, 48 green, 22 yellow, and 19 purple blocks. You pick one block from the bag at random. Find each theoretical probability. P(green) P(purple) P(not y

Algebra ->  Probability-and-statistics -> SOLUTION: A bag contains 36 red, 48 green, 22 yellow, and 19 purple blocks. You pick one block from the bag at random. Find each theoretical probability. P(green) P(purple) P(not y      Log On


   



Question 656613: A bag contains 36 red, 48 green, 22 yellow, and 19 purple blocks. You pick one block from the bag at random. Find each theoretical probability.
P(green)
P(purple)
P(not yellow)
P(green or yellow)

P(yellow or not green

Answer by solver91311(24713) About Me  (Show Source):
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All of your probability fractions are going to have the same denominator, and that is the sum of all the blocks in the bag. Then your numerator is just the number of blocks that fit the described probability. P(green) is the number of green blocks divided by the total number of blocks, and so on. Super-Double-Plus Extra Credit: What is the difference between P(yellow or not green) and P(not green)?

John

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