To find the width:
Calculate the range of the entire data set by subtracting the lowest point from the highest, Divide it by the number of classes. Round this number up (usually, to the nearest whole number).Beside above, what is width in frequency distribution? The “class width” is the distance between the lower limits of consecutive classes. The range is the difference between the maximum and minimum data entries. Steps for constructing a frequency distribution from a data set.
Keeping this in consideration, what is size of class interval?
In inclusive form, class limits are obtained by subtracting 0.5 from lower limitand adding 0.5 to the upper limit. Thus, class limits of 10 - 20 class interval in the inclusive form are 9.5 - 20.5. Class size: Difference between the true upper limit and true lower limit of a class interval is called the class size.
What is the width of class interval?
The lower limit for every class is the smallest value in that class. On the other hand, the upper limit for every class is the greatest value in that class. The class width is the difference between the upper or lower class limits of consecutive classes. All classes should have the same class width.
