Question: For a dataset with four unique values (55, 70, 80, and 90), the relative frequency for the value 55 is 20%, the relative frequency for

For a dataset with four unique values (55, 70, 80, and 90), the relative frequency for the value 55 is 20%, the relative frequency for 70 is 30%, the relative frequency for 80 is 20%, and the relative frequency for 90 is 30%. What is the cumulative relative frequency for the value 70? A. 20% B. 30% C. 50% D. 100%

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