A study is under way in Yosemite National Forest to determine the height of adult 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 sample in the study.
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 sample in the study refers to the specific group of 250 adult American pine trees that were randomly selected for the study. This sample is representative of the larger population of 25,000 adult American pines in the forest, and the analysis of this sample can provide insights into factors that contribute to trees reaching heights greater than 60 feet. Therefore, choice A is the best answer. Choice B includes the entire population of adult American pines in the forest, while choice C only includes trees taller than 60 feet and choice D includes American pine trees of any age. These options are not representative of the specific sample being studied for height.

A Study Is Under Way in Yosemite National Forest to Determine