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3. (8 points) The following grouped frequency distribution represents a sample of college students was asked how much they spent monthly on a cell phone

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3. (8 points) The following grouped frequency distribution represents a sample of college students was asked how much they spent monthly on a cell phone plan (to the nearest dollar) Class Limits (Monthly Cell Plan Cost (S) Frequency (Number of Students) 10-19 8 20-29 16 30-39 21 40-49 11 50-59 4 Find the mean, modal class, variance and standard deviation. USE GRAPHING CALCULATOR

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