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The test scores of the students in four classes are summarized below. Answer the questions...

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The test scores of the students in four classes are summarized below. Answer the questions about them.Class A: The mean score is 115 and the range of scores is 34.Class B: The mean score is 122 and the range of scores is 33.Class C: The mean score is 119 and the range of scores is 28.Class D: The mean score is 120 and the range of scores is 36.(a) Based on the information above, which class's scores have the most variability?Class AClass BClass CClass D(b) Based on the information above, which class has the lowest scores on average?Class AClass BClass CClass DX S ?

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