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Consider a finite population U of size N = 5. We consider the following sample design: s {1, 2} {3,4} {3, 5} {4, 5} {2,

Consider a finite population U of size N = 5. We consider the following sample design:

s {1, 2} {3,4} {3, 5} {4, 5} {2, 4}
p(s) 1/4 1/6 1/6 1/6 1/4

Table 1: The sample design

(i) Determine the first-order inclusion probabilities.

(ii) Determine the second-order inclusion probabilities.

(iii) Does this sample design correspond to simple random sampling without replacement? Systematic sampling? Bernoulli sampling? Justify your answers.

Reference: Sampling: Design and Analysis, 3rd Edition, by S.L. Lohr (2022).

Course: MAT3777 University of ottawa

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