Because the mode represents the number that appears most frequently, it cannot reflect the average level.

Standard deviation: the average value of the distance between each data and the average value (deviation from the average value), that is, the square root of the sum of squares of deviation. Expressed by σ. So the standard deviation is also an average.

Median: arrange a set of data in numerical order from small to large, and the middle number (or the average of two numbers) is called the median of this set of data. Represents the medium situation of the data population.

Not to mention the average.