110 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 14 0.1273 14 1 8 0.0727 22 2 11 0.1000 33 3 15 0.1364 48 4 14 0.1273 62 5 16 0.1455 78 6 18 0.1636 96 7 13 0.1182 109 Total 110 1.0000 110 b. What is the cumulative relative frequency for flossing 3 times per week? 0.4364%
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110 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 17 0.1545 17 1 14 0.1273 31 2 15 46 3 0.1273 60 4 12 0.1091 72 5 10 0.0909 82 6 19 0.1727 101 7 9 0.0818 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 4 times per week? %
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110 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 | 21 | 0.1909 | 21 1 | 10 | 0.0909 | 31 2 | | 0.1545 | 48 3 | 13 | 0.1182 | 61 4 | 10 | 0.0909 | 71 5 | 9 | 0.0818 | 80 6 | 12 | | 7 | 18 | 0.1636 | 110 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 1 time per week? Hint: Frequency Tables
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In a national survey conducted by the Centers for Disease Control to determine health-risk behaviors among college students, college students were asked, "How often do you wear a seat belt when riding in a car driven by someone else?" The frequencies were as follows: (a) Construct a relative frequency distribution. (b) What percentage of respondents answered "Always"? (c) What percentage of respondents answered "Never" or "Rarely"? (d) Construct a frequency bar graph. (e) Construct a relative frequency bar graph. (f) Construct a pie chart. (g) Suppose that a representative from the Centers for Disease Control says, "52.7\% of all college students never wear a seat belt." Is this a descriptive or inferential statement? (TABLE CAN'T COPY)
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