The lists give the values in data sets X and Y. Which statement correctly compares the mean of data set X and the mean of data set Y?
Data set X: 5, 9, 9, 13
Data set Y: 5, 9, 9, 13, 27
Data set X: 5, 9, 9, 13
Data set Y: 5, 9, 9, 13, 27
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