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Measures of Dispersion Ten friends kept track of how many times they sent a text over a one hour period. The results are in the

Measures of Dispersion Ten friends kept track of how many times they sent a text over a one hour period. The results are in the table below. number of texts 7 7 9 10 13 16 19 19 19 20 They determine that the mean of the data set is , but they also want to know the range and standard deviation. Calculate the range of the data set. a) texts Calculate the POPULATION (since it's just two friends, they're the population) standard deviation of the data set. b) texts

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