Finding mean, variance and standard deviation from a frequency distribution
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Given the following frequency distribution, find the mean, variance, and standard deviation.
Please show all of your work so I can see how to do this for the future. This one is a good example of what I can do in the future for real estate.
Class Frequency
46-48 22
49-51 23
52-54 23
55-57 9
58-60 7
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The expert finds the mean, variance and standard deviation from a frequency distribution.
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