predict the number of times you would get each type of marble if you do this experiment 288 times with 1 of each type of marble,black,striped,wavy lined,dotted
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There is one marble of each type, so the probability of selecting a particular type is ΒΌ. The average number of marbles for each type is 288/4=72. That is, in 288 trials you would expect to draw 72 black, 72 striped, 72 wavy lined, 72 dotted on average.

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