Bobby rolls 2 fair 6-sided dice and considers it a "success" if the sum of the...

Bobby rolls 2 fair 6-sided dice and considers it a "success" if the sum of the die results is 5 or 6. He performs 4 trials.

Martha tosses 2 fair coins and considers it a "success" if both coins land on "heads." She performs 3 trials.

Heather rolls 1 fair 4-sided die and considers it a "success" if he rolls a "1." He performs 5 trials.

What is the probability that exactly 2 success occur in all of the combined trials above?

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milcah answered 8 months ago

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