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Mean & Standard Deviation of Grouped Data on your Casio FX-991EX Classwiz Scientific Calculator
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Using a Casio FX-991EX Classwiz scientific calculator, this video shows how to find the mean and standard deviation of a set of grouped data and also provide working out. The mean is the average size of the values in the data set and the standard deviation is a measure of how the data is spread either side of the mean.
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