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Central tendency and measure of varibility

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Explain what is meant by mean, median, mode, variance, and standard deviation for a set of scores. Also mention under what circumstance you would use each of these.

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Mean: The mean is the sum of the given data divided by the total number of the data set. The mean can be used in situations such as finding out the average age of students in a statistics class.

Median: The media is the midpoint of the data array. In other words, it is the half way point in the given data set. You can compute the median when you want to ...

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This solution discusses central tendency and measures of variability.