Like the statistical mean and median, the mode is a way of expressing, in a (usually) single number, important information about a random variable or a population. The numerical value of the mode is the same as that of the mean and median in a normal distribution, and it may be very different in highly skewed distributions.
这个是维基百科找到的，今天听同事提醒，Mode (statistics) - Wikipedia。 连续变量也是有众数，并且是唯一的，并且可以反映skewness。
且位于图像的最高点。