L | 13 of 16 (2 complete) dentity the samping techniques used, and descuss poten
ID: 3274635 • Letter: L
Question
L | 13 of 16 (2 complete) dentity the samping techniques used, and descuss potential sources of bias of any) Explain. Aher a earthquake, a dsaster area is dvided into 200 equal gnds. Fity of the gids are selected, and every occupied household in the What type of sampling is used? O A. Stratfied sampling is used, since the disaster area is divded into grids, and a random sample is taken from each gri B. Cluster sampling is used, since the disacter area is divded into grids, and a random sample is taken from each gnd O C. Cluster samping is used, since the disacter D. Strathed samping is used since the disaster area is hided into pds and song ofthose gds are area is divided into grids, and some of those grids are selected and everyone in those grids is interviewed slued and everyon" n thosegnds il nervewed mat potential sources of bias are present·any? Select all that apply A. Certain grids may have been much more severely damaged than others B. Certan grids moy have been much more severely damaged man omers severely damaged gnds may havo tewer occup ed households. . The sample only consists of grids that are easy to get These grids may not be representalive of the population The grids that are selected may not be representative D. There are no polenta sources of tonExplanation / Answer
1. C) Cluster sampling is used, because the disaster area was divided into grids and some of those grids are selected and everyone in those grids is interviewed. Cluster sampling is used, because the disaster part was separated into grids and 50 grids were then completely selected. Definite grids may have been a lot additional injured than additionally; consequently this is a source of bias.
2. B. Certain grids may have been much more severely damaged than others. Severely damaged grids may have fewer occupied households.
C. The sample only consists of grids that are easy to get. These grids may not be representative of the population.
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