4. Sampling designs: Identify and briefly explain the appropriate sampling design for each of the following social research phenomena and show their implementation respectively. Provide practical explanations and make valid assumptions in order to support your answer. 1 To randomly study the prevalence of malaria in households in a given territory To study the hunger situation in a systematic pattern within a given territory 111. To study poverty in a heterogeneous high, medium and low density population To study farming practices implemented in different villages in a given region To study farming practices used in villages by randomly selecting respondents