A bag has 4 red and 6 blue marbles.  A marble is selected and not replaced, then a second is selected.  What is the probability that both are the same color?
Question:
A bag has 4 red and 6 blue marbles.  A marble is selected and not replaced, then a second is selected.  What is the probability that both are the same color?
Answer:
Let's think step by step.

user
\frac{7}{15}
A bag has 4 red and 6 blue marbles.  A marble is selected and not replaced, then a second is selected.  What is the probability that both are the same color?
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