This data is from a sample. Calculate the mean, standard deviation, and variance. x 12.1 30.7 37.3 16.9 31.7 14.4 42.4 Please show the following answers to 2 decimal places. Sample Mean =  Sample Standard Deviation =  Sample Variance =  Ooops - now you discover that the data was actually from a population! So now you must give the population standard deviation. Population Standard Deviation =

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