A coin is tossed 140 times. The probability of getting tails is p=0.500. Would a result of 55 heads out of the 140 trials be considered usual or unsual? Why?
The result of 55 heads out of 140 trials would be considered usual. This is because the probability of getting tails is p=0.500, which means that the probability of getting heads is also 0.500. Therefore, the expected result of heads out of 140 trials would be 70, which is close to the actual result of 55.
