<span>Descriptive statistics mainly used for a group of people's numerical data such as percent, average , measures of test scores and number of hours working etc in a particular classroom setting.
In this,
->variable(x) used for measurable characteristics.
-> population(X) used for all subjects or objects.
->Parameter is used for measurable characteristics of a
population.
->Sample used for a smaller group of subjects.
-> Frequency graph used for picture depicting the number of times
an event occurred.
->Bar graph used to mention the number of blocks or length
representing the frequency of occurrence.
->Mean used to calculate intermediate value between several
other numbers in a group.
Using all or some of the above, reliability and validity measured.</span>
