A survey is commissioned to study the weight of NFL players at certain positions.  Of the 188 active NFL wide receivers, a simple random sample of size 32 is selected.  Which of the following is the best description of the parameter  a. The average weight of all NFL wide receivers. b. The weight of one randomly selected NFL player. c. The average weight of the 32 NFL wide receivers in the sample. d. The average weight of all NFL players.

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