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Mathematics 10 Online
OpenStudy (anonymous):

Four balls are selected at random without replacement from an urn containing three white balls and five blue balls. Find the probability of the given event. (Round your answer to three decimal places.) Two or three of the balls are white.

OpenStudy (anonymous):

I could use some help with this question. I understand how to get the answer if ALL were to be white but the part that is confusing me is the 2 OR 3.

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