Answer:
This sampling method is called cluster sampling.
Explanation:
In cluster sampling, the researcher will first divide the population into separate groups. The researcher in the passage focused on sixth graders of a certain state as his subjects. The next step is to select a simple random sample of clusters from that population. In this case, the researcher randomly selected 5% of the districts in the state, and administered the achievement test to their sixth graders. Therefore, we can safely say he used cluster sampling.
Yes they can......................
Answer: Superseding cause
Explanation:
Superseding cause is an unforgettable intervention cause that occurs after a initial act of negligence and causes injuries to an individual.
Answer: The average density of the boat, including the steel and air, is less dense than 1.00 g/cm³.
Explanation: The Archimedes rule of ''the floating of an object'' states that the amount of water displaced by an object placed in the water has to be big enough to allow the object to float.
Since a good part of the boat's inside contains air, it means that the combination of steel and air is light compared to the average density of water and it causes the boat to float.
