Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five, is _______.
Option: 1 9
Option: 2 10
Option: 3 11
Option: 4 12
4 dice are independently thrown. Each die has the probability to show 3 or 5 is
The experiment is performed with 4 dices independently
Therefore, Their binomial distribution is
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