Hi, I need help in solving this problem. I don't understand how to set up and solve.

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.) Click the icon to view the frequency distributions. Complete the relative frequency table below. Relative Relative i Frequency Distributions - X Frequency Frequency Tar (mg) (Nonfiltered) (Filtered) 6 -11 12- 17 % 18 -23 % % Tar (mg) in Tar (mg) in Nonfiltered Filtered 24 - 29 % Cigarettes Frequency Cigarettes Frequency 30 - 35 18 -23 24 -29 36 -41 30 -35 ON 6 - 11 12-17 14 18 -23 42 -47 36 - 41 24-29 (Simplify your answers.) 42 -47 - Print Done