众数：简单的说，就是一组数据中占比例最多的那个数。用众数代表一组数据，可靠性较差，不过，众数不受极端数据的影响，并且求法简便。-Simply put, accounted for the largest proportion of that number is a set of data.On behalf of a set of data in the plural, poor reliability, but the plural from extreme data, and the met