Tuesday, July 28, 2009

Probability help?

probabilities help?





Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers.


a. what is the probability that exactly 1 of the 3 cards has a winning number?


b. what is the probability that at least 1 of the 3 cards has a winning number?


c.what is the probability that non of the 3 cards has a winning number?

Probability help?
a. 0.5712 or 57.12%


b. 0.7143 or 71.43%


c. 0.2857 or 28.57%
Reply:Ask this in the Science %26amp; Mathmatics section for more answers.

flash cards

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