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 sample in the study.
A) all American pine trees, of any age, in the forest
B) the 250 randomly selected adult American pine trees
C) all the adult American pine trees taller than 60 feet
D) the 25,000 adult American pine trees in the forest
Question 2
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 25,000 adult American pine trees in the forest
B) all the adult American pine trees taller than 60 feet
C) the 250 randomly selected adult American pine trees
D) all American pine trees, of any age, in the forest
Reconstruction of a Carboniferous (Coal Age) forest.
Pine squirrel
Male South American Knob-billed Duck (S. m. sylvicola)
Parenting Styles Reported by a Representative Sample of American Adolescents