Since there are 10 cards and each card has an equal probability of being selected, the probability of selecting the number five is 1/10.
Therefore, in 120 trials, you would expect to select the number five approximately 120*(1/10) = 12 times.
A deck of 10 cards labeled 1-10 is shuffled card is selected at random if the experiment is repeated 120 times how many times will you expect to select number five
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