# st.joseph's high school

two boxes are selected randomly.the first box contains 2 white balls and 3 black balls.the second ball contains 3 white balls and 4 black balls.what is the probability of drawing a white ball?

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1. Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

Assuming that the pick is either one box or the other "ball," either-or probabilities are found by adding the individual probabilities.

2/5 + 3/7 = ?

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posted by PsyDAG

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