Lesson 4. As we continue to our lesson, the topic becomes harder and more formula to be memorized. The Measures of Variability was reported by Mr.Melvin Calixton with all his knowledge he delivered it very well. He has a 95% confidence that he will deliberate the lesson successfully and he did it.
Measures of Variability are a single value that is used to describe the spread out of the scores in a distribution that is above or below the measures of Central Tendency. There are commonly used measure of variability, the range, the quartile deviation and the standard deviation.
The measures of variability are two kinds: 1.) Absolute Variability 2.) Relative Variability.
Absolute Variability are Range, Quartile Deviation, Average Deviation, Variance and Standard deviation. Under the Relative Variability are coefficient of variation, Coefficient of Quartile Deviation and Coefficient of Mean Deviation.
Different ways to measure variable was introduced to us by using the different formula. All of these topics can be easily solved by using and with the help of the Microsoft Excel. We are also taught on how to get its answer by dragging the mouse, by choosing the option and by clicking it then the answer were there automatically.
Although the topic was so hard because there were so many formulas to be memorized but it’s a big help to us, especially in our field work like solving the problem data whether it is grouped data or ungrouped data by getting its midpoint, frequency, its standard deviation through formula and with the help of Microsoft Excel.
Partly, multimedia contributed a big part of this subject matter.
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