Question: content area top Part 1 Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. After a tsunami, a disaster area

content area top Part 1 Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. After a tsunami, a disaster area is divided into 200 equal grids. Thirty of the grids are selected, and every occupied household in the grid is interviewed to help focus relief efforts on what residents require the most. What type of sampling is used

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