of tar ingested by the smoker.) E Click the icon to view the frequency distributions. ..... Complete the relative frequency table below. Relative Relative Frequency Tar (mg) (Nonfiltered) Frequency (Filtered) - X Frequency distributions 2-5 6-9 10 - 13 % Tar (mg) in Nonfiltered Cigarettes Frequency 10 - 13 14 - 17 Tar (mg) in Filtered 14 - 17 % 18 - 21 % % Cigarettes Frequency 2-5 6-9 22 - 25 % % 1 26 - 29 % 1 2 (Simplify your answers.) 18 - 21 22 - 25 10 - 13 14 - 17 14 15 Do cigarette filters appear to be effective? 26 - 29 2 O A. Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes. O B. No, because the relative frequency of the higher tar classes is greater for filtered cigarettes. OC. No, because the relative frequencies for each are not substantially different. Print Done O D. This cannot be determined.

Recall that a relative frequency histogram is used to graph quantitative data. Classes are chosen to divide the range of values into equal-length subintervals, then plotted along the horizontal axis. A bar is drawn for each class with height equal to the relative frequency for that class. To create a relative frequency histogram, first summarize the following data in a frequency table. 1 N 2 3 4 5 6 7 Class Class Boundaries 8 9 1.3 10 11 14.7 9.0 16.7 4.1 14.9 4.4 2.7 32.3 10.9 9.0 9.0 1.6 18.4 1.0 2.4 2.4 18.0 Since the measurements are all between the values 0 and 33, it will be convenient to choose 11 class intervals of length 3. Using the given data, tally the values within each class interval to determine the frequency of each class, and fill in the following table. 0 to <3 3.5 11.2 18.0 26.7 3.7 3 to 6 6 to 9 9 to 12 12 to < 15 15 to 18 18 to 21 21 to 24 24 to 27 0.2 6.1 13.5 27 to < 30 30 to 33 7.4 8.2 19.2 1 1 2 1 Frequency 10 5 1 4 1 X X 9.4 X 8.7 X 2.0 6.6 3.9 5.9 4.3 3.3 0.2…

The following are goals scored by a soccer team at each game in their recent season. 00 0 0 1 1 1 1 1 1 2 2 2 5 0 Complete the relative frequency table. Goals Frequency 1 2 3 4 0 0 1 1 3 5 1 1 1 3 4 4 6 11 3 2 2 1 Relative Frequency

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Using the table below to calculate all the relative frequencies (A-E) and all the cumulative frequencies (AA - EE).   PARTICIPATING AGE INTERVAL FREQUENCY RELATIVE FREQUENCY RELATIVE FREQUENCY 10-19 2 A AA 20-29 10 B BB 30-39 34 C CC 40-49 3 D DD 50-59 1 E EE   What value would be in box B?

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Here are the quiz scores (out of 50) on a past quiz.  Construct a Relative Frequency Table. 36 42 42 42 42 41 38 41 40 42 43 44 45 45 46 44 43 48 43 42 43 41 50 38 38 40 44   Class Limits Lower - Upper Class Boundaries Lower - Upper   Tally Frequency Class Midpoint Relative Frequency (f/n)

MY NOTES ASK YO Suppose that the following relative frequency table represents hurricanes that have made direct hits on land. Hurricanes are given a strength category rating based on the maximum wind speed generated by the storm. Frequency of Hurricane Direct Hits Category Number of Direct Hits Relative Frequency Cumulative Frequency 1 105 0.3723 87 0.3085 0.6809 3 66 0.2340 4 19 0.9823 0.0177 1.0000 Total = 282 What is the relative frequency of direct hits that were AT MOST a category 3 storm? (Round your answer to four decimal places.) 0.2340

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