List experimental$\_$data is read from input. The elements of experimental$\_$data are separated into thirds. The first third of the data is collected in the morning, the second third in the afternoon, and the last third in the evening. Integer slice$\_$size represents the number of data in each third.

Assign slice$\_$size with len$($experimental$\_$data$)//3.$

Assign morning$\_$group with a slice of experimental$\_$data from the beginning up to and excluding index slice$\_$size.

Assign afternoon$\_$group with a slice of experimental$\_$data from index slice$\_$size up to and excluding index $(2*$ slice$\_$size$).$

Assign evening$\_$group with a slice of experimental$\_$data from index $(2*$ slice$\_$size$)$ up to and including the end.