This type of sample is called a random forensic survey.
Answer:
about the same rate
Explanation:
Based on the information provided within the question it can be said that progress made during the school year is about the same rate regardless of the background of the children. Researchers believe this is because all of the students are being taught with the same curriculum as one another regardless of their backgrounds, therefore they progress at about the same rate.
The answer is Military
Countries such as Norway, Sweden, Denmark and Switzerland are some of most developed countries in the world.
They have the Highest Human Development Index which points to how the government spends on providing high quality education, health and other public sector services.
However, all these countries also lack a strong and powerful military which can actually provide capable defense.
Switzerland is a neutral country while many Northern European countries are part of the NATO. As the United States spends the bulk of all money at NATO, these countries actually save billions of dollars every year.
Hence, while these countries have a high Human development Index, they lack a secure Army
