70 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: # of times floss per week Frequency Relative Frequency Cumulative Frequency 0 7 0.1 11 0. 1571 18 2 15 0.2143 33 W 45 4 9 0. 1286 54 5 7 0. 1 61 6 4 0.0571 65 7 5 0.0714 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 3 times per week? %