SOLUTION: A box contains a total of 12 crayons: 2 red, 3 green, 3 blue, 1 yellow, 2 purple, and 1 brown. Without looking, Frieda picks two crayons from the box. What is the probability that

Algebra ->  Test -> SOLUTION: A box contains a total of 12 crayons: 2 red, 3 green, 3 blue, 1 yellow, 2 purple, and 1 brown. Without looking, Frieda picks two crayons from the box. What is the probability that       Log On


   



Question 1155657: A box contains a total of 12 crayons: 2 red, 3 green, 3 blue, 1 yellow, 2 purple, and 1 brown. Without looking, Frieda picks two crayons from the box. What is the probability that both will be blue?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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The probability that the first picked crayon is blue is  3%2F12.


The probability that the second picked crayon is blue, under the condition that the first one was blue, is  2%2F11.


The probability that both of the two are blue is the product  %283%2F12%29%2A%282%2F11%29 = %281%2F4%29%2A%282%2F11%29 = 1%2F22.    ANSWER