The relative frequency percentages are computed as follows:
The completed relative frequency table is thus given below:
Continine (ng/ml) | Smokers | Nonsmokers exposed to smoke |
---|---|---|
0-99 | 23.63% | 76.36% |
100-199 | 85.71% | 14.28% |
200-299 | 94.73% | 5.26% |
300-399 | 50% | 50% |
400-499 | 71.42% | 28.57% |
500-599 | 0% | 100% |
Now, most smokers have 200-299 ng/ml continine while most nonsmokers exposed to smoke have 0-99 ng/ml of continine. Hence, the answer is given as follows:
ANSWER: (C) The two distributions differ significantly. The peak of the distribution of continine appears to be much higher for smokers than for nonsmokers exposed to smoke.
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