Question

Which of the following surveys would most likely produce an unbiased sample?a. A reporter surveys people at a local pet store to see if the town's residents favor the construction of a new dog park.b. Spectators at a school football game are asked what their favorite sport to watch is.c. A polling company surveys downtown workers to determine how much support there is among city residents for the construction of a new highway that runs downtown.d. A restaurant owner asks every 10th customer leaving the restaurant to rate their satisfaction.

Answer 1

Averita, this is the solution:

Step 1: Let's review what are the requirements that an unbiased sample meets:

1. Each member of the population is equally likely to be chosen

2. The sample is representative of the whole population

3. The sample should be large enough to generalize the results.

Step 2: According to the previous definitiion, the survey that would produce an unbiased sample is:

c. A polling company surveys downtown workers to determine how much support there is among city residents for the construction of a new highway that runs downtown.