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A grouping system is a type comprising a correlated activity that integrates any number of members of the subset to generate a factor of the range, with a self - concept and an exact opposite for each component.

Cut-point grouping with equal width class of width $8$was used to organise a quantitative data set.

The difference between the higher and lower cut-points is the common class width.

The lower cut-point is the midpoint that has been reduced by half of the class width, whereas the upper cut-point is the midpoint that has been increased by half of the class width.

As a result, the lower and upper cut-points are respectively $6$and $14$.

A grouping system is a type comprising a correlated activity that integrates any number of members of the subset to generate a factor of the range, with a self - concept and an exact opposite for each component.

The average of the cut-points is the middle.

The former midway is increased by class width to create the new midpoint.

As a result, the midpoint is $18$.

A grouping system is a type comprising a correlated activity that integrates any number of members of the subset to generate a factor of the range, with a self - concept and an exact opposite for each component.

The average of the lower and upper bounds is the class mark.

The lower cut-point is the previous class's upper cut-point, whereas the upper cut-point is the lower cut-point multiplied by the class width.

The lower and upper cut-points are therefore $22$and $30$, respectively.

A grouping system is a type comprising a correlated activity that integrates any number of members of the subset to generate a factor of the range, with a self - concept and an exact opposite for each component.

A class's lower class limit is the smallest data value that can be stored in the class.

Because $22$is the lowest cut-point of the third class, it contains the observation of $22$.

As a result, the observation of $22$is included in the third class.