Читать книгу Statistics and Probability with Applications for Engineers and Scientists Using MINITAB, R and JMP - Bhisham C. Gupta, Irwin Guttman - Страница 88

To find the mode of a grouped data set is simple. This is because we need only to find the class with the highest frequency. The mode of the grouped data is equal to the midpoint of that class. But, if there are several classes with the same highest frequency, then there are several modes that are equal to the midpoints of such classes.

In Example 2.6.1, the mode is equal to the midpoint of the class , since it has the highest frequency, 11. Thus