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.) requency Distributions - X Tar (mg) in Tar (mg) in Nonfiltered Filtered Cigarettes Frequency Cigarettes Frequency 11 - 14 3-6 15 - 18 O 7-10 19-22 14 11- 14 23 -26 6 15 - 18 27 - 30 4 Print Done