Researchers would like to assess the overall health of white pine trees in a state park. Which of the following methods for choosing the trees to assess would be considered a convenience sample?
Answer
A
A ranger hires employees to assess every tree in the park.
B
The 100 trees closest to a ranger station are assessed for damage.
C
A grid map of the park is used, and 100 random points on the grid are chosen and used to select the trees to assess.
D
Each tree in the state park is tagged with a number, and 100 random numbers that represent the trees are selected and assessed for damage.