The information that comes with a flat-screen television includes a registration card to be returned to the manufacturer. Among questions that identify the purchaser, the registration card asks him or her to identify the cable provider or other source of television programming.
(a) Population
(b) Parameter of interest
(c) Sampling frame
(d) Sample size
(e) Sampling design, including whether randomization was employed
(f) Any potential sources of bias or other problems with the survey or sample
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