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. Flossing Frequency for Adults with Gum Disease # Flossing per Week Frequency Relative Frequency Cumulative Relative Freq. 24 0.4000 1 18 3 0.9333 6 0.0500 7 1 0.0167 O Part (a) Fill in the blanks in the table. (Round your answers for relative frequency and cumulative relative fregquency to four decimal places.) Flossing Frequency for Adults with Gum Disease # Flossing per Week Frequency Relative Frequency Cumulative Relative Freq. 24 0.4000 18 3. 0.9333 3. 0.0500 0.0167 O Part (b) What percent of adults flossed six times per week? (Round your answer to two decimal places.) % O Part (c) What percent flossed at most three times per week? (Round your answer to two decimal places.)

In a student survey, forty-one part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 2 3 10 15 0.3659 Search 0.3902 What percent of students take exactly two courses? Frequency Tables Question Help: Written Example Message instructor Submit Question Jump to Answer 25 41 1% B. M W

The results for a blood test for a certain disease are shown in the table below. Based on the table, what is the prevalence of the disease? T+ T- Total D+ 290 10 300 D- 3219 481 3700 Total 3509 491 4000 A. 0.09 0.97 O B. 0.0725 290 Screenshot

mg The total blood cholesterol level was measured for each of 20 adults. Here are the 20 measurements (in ). dL 129, 138, 154, 158, 170, 172, 176, 176, 184, 187, 189, 190, 199, 199, 201, 206, 213, 220, 227, 249 Send data to Excel Send data to calculator Frequency 8 6+ 4- 24 0 125 2 150 Answer the questions below. 4 175 200 Cholesterol level (in mg/dl) 8 (a) For these data, which measures of central tendency take more than one value? Choose all that apply. Check (b) Suppose that the measurement 249 (the largest measurement in the data set) were replaced by 348. Which measures of central tendency would be affected by the change? Choose all that apply. (c) Suppose that, starting with the original data set, the largest measurement were removed. Which measures of central tendency would be changed from those of the original data set? Choose all that apply. A 225 2 250 Mean Median Mode ONone of these measures Mean Median Mode ONone of these measures Mean Median Mode None of these measures X…

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In a student survey, forty-one part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 15 0.3659 15 2 12 0.2927   ? 3   ?    ? 41  What percent of students take exactly one courses          ? %

Eye Color f % Amber 5 4.81% Blue 8 7.69% Brown 82 78.85% Gray 3 2.88% Green 2 1.92% Hazel 3 2.88% Red/Violet 1 0.96% Total 104 100.00%   Comment on your finding

A data set is summarized in the frequency table below. The data set contains a total of 30 data values. What is the missing frequency?   Value Frequency 1 5 2 3 3 4 4 6 5 □ 6 2 7 3 8 4