The graph below shows the ages of a sample of adolescents in a research study: Percent 25 20 15 10 5 0 12 14 age of youth 16 With regard to the graph, which of the following is a true statement? O There were an equal number of 13 year old and 16 year old subjects in the sample. Most of the subjects in the sample are 15 years old. O There are 100 subjects in the study. O About 15 subjects were 17 years old. 18

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