3. Sampling designs: Briefly identify and explain the appropriate sampling design for each of the following research problems or social phenomena and briefly show their implementation respectively. Provide practical explanations and make sound assumptions in order to support your answer. i. To randomly study the prevalence of malaria in households in a given territory ii. To study the hunger situation using a systematic sample in a given territory iii. To study poverty in a heterogeneous high, medium and low density population iv. To study farming practices implemented in different villages v. To study farming practices implemented in different villages and further randomly target certain respondents to provide additional insights on the phenomenon