Question: in response to a survey asking how much data they used last month, 15 cellphone users gave the following answers (in GB). For this sample,

in response to a survey asking how much data they used last month, 15 cellphone users gave the following answers (in GB). For this sample, find the mean, standard deviation, and quartiles. Round the mean and standard deviation to the nearest hundredth (to two decimal places). 7.2 7.5 3.5 4.2 6.7 5.3 6.9 6.7 5.0 3.1 4.0 6.3 5.6 5.6 3.0

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