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What is the standard deviation for age of participants in the no-cartoon control group? What does this value mean? Are the participant's ages more dispersed
What is the standard deviation for age of participants in the no-cartoon control group? What does this value mean? Are the participant's ages more dispersed (i.e., more varied) in the control group or the groups that watched cartoons? How could you describe / conclude about the mean ages and years of school for the three groups
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