game of chance: You must pill 2 marbles of same color from bag of 10 marbles...

ialwaysneedhelp

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Dec 4, 2017
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i need help with my math homework question, if you guys could just give me an explanation of how to solve this and the answer id be forever indebted to you:p

"you are playing a game of chance in which to win, you must pill two marbles of the same color from a bag of 10 marbles. In the bag there are 4 blue and 6 white marbles. What is your probability of winning by pulling either two blue marbles or two white marbles?"

thanks!
 
Please ask yourself a series of questions...

p(first pulling a blue) = ??
p(first pulling a white) = ??
p(blue|blue) = ??
p(white|white) = ??

You may wish to build a tree.

Please show YOUR work.
 
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