A research team studied the health of trees in a large forest. They randomly selected 400 pine trees from the northern section of the forest and found that showed signs of disease. Which of the following conclusions is best supported by the sample data?
Approximately 15% of all trees in the forest show signs of disease.
The majority of pine trees in the forest are healthy.
Approximately 15% of all pine trees in the northern section of the forest show signs of disease.
Approximately 15% of all trees in the northern section of the forest show signs of disease.
