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Sixty adults with gum disease were asked the number of times per week they used to floss
before their diagnoses. The (incomplete) results are shown below:
Cumulative
Flossing
Relative
Frequency
Relative
per
Frequency
Frequency
Week
27
0.4500
1
18
0.9333
3.
0.0500
0.0167
What percent of adults flossed 7 times per week? Round to one decimal place.
67

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