There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow)
A. 40/900
B. 5/30
C. 8/30
D. 40/870
Is the answer D?
Thank you
1 answer
Convince me that D is the correct answer
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