Probability Proportional to Size (PPS) Sampling, Double Sampling, Randomized Response & Agricultural Statistics System (CES)

Which one of the following is an example of primary database?

Thomson Reuters was created by the Thomson Corporation's purchase of the --------------company, Reuters Group.

Consider the population U = {1, 2, 3} with P({1, 2}) = 1/2; P((1, 3}) = 1/4; P({2, 3}) = 1/4. Then if 1% denotes the first order inclusion probability of the k-th unit (k=1, 2, 3),

which of the following is NOT
true’

Avillage has 10 orchards numbered 1 to 10 containing 150, 50, 80, 100, 200, 160, 40, 220, 60, 140 trees respectively. It is desired to select a sample of 4 orchards PPS With Replacement to the number of trees in the orchard. By cumulative total method, if the random numbers chosen in the successive draws are 600, 650, 850 and 300,