A fair die is rolled 30 times. Find the mean of the probability distribution of the number of 5's obtained for this experiment.
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Answer:
1/6
Step-by-step explanation:
when a question is something like this, the answer is no. of expectations by no. of possibilities.
(expectation is 5 which is one no. and possibilities is 6 as you could get any of these 6 numbers 1,2,3,4,5,6)
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