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I'm really getting muddled over this probability question and will be glad if I'm assisted. '' There are 5 black balls and 3 green balls in a basket. The black balls are numbered 1, 2, 3, 4 , 5 respectively and the green balls numbered 1, 2, 3 respectively. If 2 balls are to drawn random without replacement, find the probaility that these balls have either the same number or same color. So this was the equation I used. p ( same color or same number) = p ( same number) + p(same color ) - p ( their intersection). How do i move on?

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