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Dec
Class Interval Frequency Distribution. In statistics the data is arranged into different classes and the width of such class is called class interval. Frequency distribution is a table where data is grouped into several numerical intervals called class intervals. The class interval represents the distance between a given class lower class limit and the lower class limit of the next class. First we will form the less than type cumulative frequency distribution and we make the distribution continuous by subtracting 05 from the lower limits and adding 05 to the upper limits.
I is the class interval H is the greatest observed value L is the smallest observed value k is the number of class intervals. In other words a class interval represents the width of each class in a frequency distribution. In statistics the data is arranged into different classes and the width of such class is called class interval. In simple words it is the frequency of a class. Therefore if we take the class interval 20 30 20 is lower limit and 30 is the upper limit. However this grouped frequency table represents the exclusive form of data.
The range of scores is.
A class interval in a grouped frequency distribution table has a lower limit and an upper limit. This form of data is known as raw data. First we will form the less than type cumulative frequency distribution and we make the distribution continuous by subtracting 05 from the lower limits and adding 05 to the upper limits. Three ways of expressing the limits of the class intervals in a frequency distribution are namely exclusive method inclusive method and true class limits. The range of scores is. It is defined as the difference between the upper-class limit and the lower class limit.