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The number of times per week one hundred fifty-five adults with gum disease used floss before their diagnosis is listed below. Complete the frequency table, and round the relative and cumulative frequencies to 4 decimal places. (Relative Frequency and Cumulative Relative Frequency is rounded to the nearest 4 decimal places. The Frequency and Cumulative Frequency is rounded to whole numbers.) Cumulative Frequencies a) What percent of adults flossed six times per week? % b) What percent flossed at most three times per week? %