Central Tendency

In an Open-End interval, the lower limit of the first interval and/or the upper limit of the last interval is not given. Here, the length of these intervals is merely guessed based on the length of the interval nearest to them. […]

Continuous series such as 5-9, 10-14, 15-19, 20-24… is called an inclusive series. In such an inclusive series, the upper limit of one class is not equal to the lower limit of the next class. […]

Continuous series such as 0-10, 10-20, 20-30… is called an exclusive series. In such an exclusive series, the upper limit of one class is the lower limit of the next class. […]

In a continuous series, frequencies are shown along with the variable’s value in the form of class intervals. In other words, a continuous series is one in which both the class interval and the corresponding class frequency are given. […]

A discrete series is a type of statistical series in which a variable’s frequencies are shown without class intervals. We get X and … […]

Individual series are those in which the frequencies are not given. An individual series is created when raw data is presented individually in the form of a series. […]