Calculation of grouped data mode

This video shows how to Calculate
grouped data mode

[@peterchinaza1919]

Why was 0.5 used in subtracting and adding in the class interval?

[@israelimathsconcepts9756]

The brain behind that is simply that the class interval is not the true class limit(boundary). But was declared by the researcher by assumption . So statistically, to find the true class limit(boundary) the standard statistiacal measure is to add 0.5 and subtract 0.5 to both the lower class interval, and upper class interval respectively.

[@user-er9sj9go6o]

Good how did you get the 0.5?

[@israelimathsconcepts9756]

The brain behind that is simply that the class interval is not the true class limit(boundary). But was declared by the researcher by assumption . So statistically, to find the true class limit(boundary) the standard statistiacal measure is to add 0.5 and subtract 0.5 to both the lower class interval, and upper class interval respectively.