A deck of 10 cards labeled 1-10 is shuffled. One card is selected at random. If the experiment is repeated 120 times, how many times will you expect to select number 5?
Since each card has an equal probability of being selected (1/10), we would expect to select number 5 1/10 of the time.
So, in 120 trials, we would expect to select number 5:
Expected number of times = (1/10) x 120 = 12
Therefore, we would expect to select number 5 12 times in 120 trials.