Suppose you wish to sample n = 3 elements from a total of N = 600 elements. a. Count the number…

Suppose you wish to sample n = 3 elements from a total of N = 600 elements.

a. Count the number of different samples by using combinatorial mathematics.

b. If random sampling is to be employed, what is the probability that any particular sample will be selected?

c. Show how to use the random-number table, Table I in Appendix A, to select a random sample of 3 elements from a population of 600 elements. Perform the sampling procedure 20 times. Do any two of the samples contain the same 3 elements? Given your answer to part b, did you expect repeated samples?

d. Use the computer to generate a random sample of 3 from the population of 600 elements.

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