Construct one table (similar to Table 2-8 on page 51) that includes relative frequencies based on the frequency distributions from Exercises 5 and 6, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective?

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Table 2-8 Pulse Rates of Women and Men Pulse Rate Women Men 50-59 0% 15% 60-69 30% 42.5% 70-79 35% 20% 80-89 27.5% 20% 90-99 2.5% 2.5% 100-109 2.5% 0% 110-119 0% 0% 120-129 2.5% 0%