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Please sir answer.. 1. a. A psychologist wants to determine whether the prevalence of peer problems of adolescents vary by gender and age. Devise a

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Please sir answer..

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1. a. A psychologist wants to determine whether the prevalence of peer problems of adolescents vary by gender and age. Devise a method of selecting a sample of 600 adolescents and explain the merits of this sampling technique over other methods. [8 marks]

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