An agency has started charging a user fee to park at selected trailheads and cross-country ski lots. Some users object to this fee, claiming they already pay taxes for these areas. The agency has decided to randomly question selected users at fee areas in a region to assess the level of concern. a. Define the population of interest. b. Assume a sample of 250 is required. Suppose the agency questions the first 50 users encountered at each of 5 fee areas. Which sampling technique did the agency use?

Users who park at the selected trailheads and cross-country ski lots. ; Convenience sampling

Step-by-step explanation:

A) The population of interest:

The population of interest should include the concerned individuals which would be those who park at the selected trailheads and cross-country ski lots.

B) By sampling the first 50 users encountered at each fee areas shows that the researcher prioritizes ease or convenience while choosing samples from a population. The first 50 fee users represents the most easily accessible users. Hence, the reason the adopted sampling method is called convenience sampling.

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step-by-step explanation: