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Constructing Frequency Distributions. In Exercises 11–18, use the indicated data to construct the frequency distribution. (The data for Exercises 13–16 can be downloaded at TriolaStats.com.)
12. Tornadoes Listed below are the F-scale intensities of recent tornadoes in the United States. Construct a frequency distribution. Do the intensities appear to have a
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- Construct a frequency distribution of the data. Potholes Frequency 1 2 4 5 6 Construct a frequency histogram of the data. 3.arrow_forward1. Explain why we organize data into a frequency distribution. 2. Differentiate frequency array from frequency distribution.arrow_forwardplease solve parts d e farrow_forward
- If a researcher wants to find out the average monthly expenses of all university students in Edmonton, this average would be an example of ________ . a. samplecross out b. statisticcross out c. populationcross out d. parameterarrow_forwardHow to construct the frequency distributions? Write down the steps.arrow_forwardA student recorded how long she had to wait for the bus each day, rounded to the nearest minute, for 20 days. Her data are shown. Which frequency distribution best represents her data? Number of Minutes 0-3 4-7 8-11 12-15 16-19 Number of Minutes 0-3 4-7 4, 17, 2, 1, 3, 11, 14, 10, 6, 1, 2, 1, 4, 14, 15, 12, 1, 7, 9, 6 8-11 12-15 16-19 Frequency 7 LO 5 3 4 1 Frequency 1 3 3 9arrow_forward
- D:30 In statistics, meaningful information regarding a certain variable can be obtained from the .. Select one: A. Data that we collect. ion B. Frequency Distribution that describes its behaviors. C. Graphics that picture its frequency distribution. D. Options B and C E. All options A,B, and Carrow_forwardDiscuss the meaning of central tendency. Provide examples as needed.arrow_forwardConstruct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) Click the icon to view the frequency distributions. Frequency Distributions Complete the relative frequency table below. Relative Frequency Frequency Tar (mg) (Nonfiltered) (Filtered) 6-11 % % 12-17 % % ifi 18-23 7% % 24-29 % % 30-35 % % % 36-41 Relative % % 42-47 (Simplify your answers.) Do cigarette filters appear to be effective? % Tar (mg) in Nonfiltered Cigarettes 18-23 24-29 30-35 36-41 42-47 Frequency 1 OA. Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes. OB. No. because the relative frequencies for each are not substantially different 1 14 7 2 Print A Tar (mg) in Filtered Cigarettes Frequency 6-11 2 12-17 18-23 24-29 Done 3 6 14 - Xarrow_forward
- Construct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) E Click the icon to view the frequency distributions. Complete the relative frequency table below. Relative Frequency Tar (mg) (Nonfiltered) Relative Frequency (Filtered) Frequency distributions 2-5 6 -9 % 10 - 13 % % 14 - 17 Tar (mg) in Tar (mg) in Nonfiltered Filtered 18 - 21 % Cigarettes 10 - 13 14 - 17 Frequency Cigarettes Frequency 22 - 25 % % 1 2-5 3 26 - 29 % 1 6 - 9 18 - 21 14 10 - 13 (Simplify your answers.) 22 - 25 7 14 - 17 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.…arrow_forward3aarrow_forwardBased on the hourly incomes (in US dollars) of employees in two different branches at Citibank, which set of incomes has the most variability? You do not have to calculate anything, but you can if you want to. Just take a look at the incomes and determine which set has the most variability based on the definition.arrow_forward
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