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WHAT'S NEW Were you able to find the correct answers in the previous activity? Did you find it easy? If you had a hard time answering it, probably because there are many data values in the ungrouped data. There are only 30 values in the data set. What if there will be hundreds, or even thousands of data values? Hence, to facilitate in finding the required measures of position, we need to group this set of data and present them through a frequency distribution table. The frequency distribution table is a tabular presentation of quantitative data grouped into numerical intervals or called classes together with the number of observations in each class. It is a simple and effective method of organizing and presenting numerical data so that one can grasp an over-all picture of the data set. The Frequency Distribution Table, FDT, can have as many as eight columns or more, but we will be using four columns in this module: Class interval (CI), Frequency (), Lower Class Boundary (LCB), and the Cumulative Frequency (cf. ...
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