This paper offers class mark estimators for the intervals of a grouped frequency distribution, derived by parabolic interpolation between any given interval and its adjacent intervals. The objective ...

Continuous data can be grouped using a frequency tally. The class interval 0 ≤ \(x\) < 10 can have any values greater than or equal to 0 but less than 10 in it. This group includes anything exactly ...

A frequency diagram is a type of graph used to represent a continuous set of grouped data. First, identify the largest frequency. The largest frequency is 12. Therefore, the scale on the vertical axis ...