
Two data sets of integers each are summarized in the histograms shown. For each of the histograms, the first interval represents the frequency of integers greater than or equal to , but less than . The second interval represents the frequency of integers greater than or equal to , but less than , and so on. Based on the information provided, which of the following statements about the means of Data Set A and Data Set B is true?
The mean of Data Set A is always greater than the mean of Data Set B.
The mean of Data Set B is always greater than the mean of Data Set A.
The mean of Data Set A is exactly 1 greater than the mean of Data Set B.
The relationship between the means cannot be determined without knowing the exact values in each data set.