If the distribution is normal, what percentage of cases fall above the mean?

In a normal distribution, the data is symmetrically distributed around the mean. This means that half of the cases lie below the mean and half of the cases lie above the mean. Therefore, since the normal distribution divides the total population equally at the mean, 50% of the cases fall above the mean. This characteristic is fundamental to the properties of the normal distribution and is confirmed by its symmetry, which states that the mean, median, and mode of a normal distribution are all equal and located at the center of the distribution curve. Thus, the correct percentage of cases falling above the mean is indeed 50%.