A box contains 8 red and 3 yellow balls. Three balls are drawn at random. What is the expected
number of red balls drawn?
Assuming we are to remove one ball at a time without replacing, then, we can use a tree diagram. (it is attached below)... View the full answer
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- Jul 19, 2016 at 9:55pm
- Sorry, I forgot to attach.
- Jul 19, 2016 at 9:58pm