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.)

Complete the relative frequency table below. Relative Relative Frequency Frequency Tar (mg) (Nonltered) (Filtered) 4 9 I% D% 10 15 D% D% 16 21 |:|% D% 22 27 D% D% 23 33 |:|% |:|% 34 - 39 D% D% 40 45 D% D% (Simplify your answers.)