Reasons for grouping:
Problems with grouping:
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Advantage is the opposite of disadvantage.
The advantage of harmonic mean is that it is used to solve situations in which there are extreme data values to true picture. The disadvantage of it is that it can be time consuming to evaluate the data.
Convenient sampling refers to using a sample group that is the easiest to gather. The advantage of this is that it is the easiest way to convene a test group. The down side is that the sample may not be representative of the population, so the results will be skewed.
Advantage - It's artificial and you can play with it, shape it, and have it do just about anything you can imagine. Disadvantage - It's artificial, and it can play with you, shape you, and have you do just about anything someone who programmed it can imagine.
Depends on advantage compared to what. There may not be any advantage compared with representing data in graph form.