A study is under way in Yosemite National Forest to determine the adult height of American pine trees.Specifically,the study is attempting to determine what factors aid a tree in reaching heights greater than 60 feet tall.It is estimated that the forest contains 25,000 adult American pines.The study involves collecting heights from 250 randomly selected adult American pine trees and analyzing the results.Identify the population from which the study was sampled.
A)The 250 randomly selected adult American pine trees.
B)The 25,000 adult American pine trees in the forest.
C)All the adult American pine trees taller than 60 feet.
D)All American pine trees,of any age,in the forest.

Question

Quizplus · Accepted Answer

The population from which the study was sampled is the entire population of 25,000 adult American pine trees in the forest. The study is attempting to determine factors that aid trees in reaching heights greater than 60 feet, so it is important to have a sample that includes trees of all heights. Sampling only the 250 trees taller than 60 feet or any particular age group would not give a representative sample of the entire population.

A Study Is Under Way in Yosemite National Forest to Determine