SOLUTION: If you have a six-sided dice and you roll that dice 90 times, what is the expected probability your dice will land on a 2 and a 3?

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Question 401617: If you have a six-sided dice and you roll that dice 90 times, what is the expected probability your dice will land on a 2 and a 3?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
1)die = singular, dice = plural
2) The probability that a die, thrown once, will show 2 AND 3 is 0.
The probability that a die, thrown once, will show 2 OR 3 is 2/6, or 1/3.
Thus the expected number of times a 2 or a 3 will show is (1/3)*90 =30 times.