Lecturer
After collecting data from any phenomenon, this data is not arranged or organized, so we need to present it in a way that makes it easy to study. Unclassified data: is the raw data collected about the phenomenon unless it is tabulated . Classified data: is data arranged and organized in a frequency distribution table (categories, frequencies).
Frequency Distribution Table It is a simple table consisting of two columns. The first column: The variable values are divided into sections or groups called classes .The second column: shows the vocabulary of each class and is called class frequency.
Material File