Question

For which situations is it appropriate to use a sample? Choose all that apply.
What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?
Should the speed limit be decreased on the highway connecting two large cities?
How many pedestrians would use a walkway built over a busy road?
How many police cars are equipped with computers?
What is the most popular car color in the teachers’ parking lot?

Answer 1

old question but will respond so this can be closed

think about a question that isn't a simple yes/no answer, and would be too hard to answer by taking data about every single member in the population

for example, the pedestrian one would be good to take a sample and observe/count the pedestrians over a limited period of time to make a conclusion. it would be impractical to count every single pedestrian at all times.

go through the other answer choices w/ similar logic.