Answer:
This is called cluster sampling procedure.
Explanation:
In this type of procedure, a group of elements is considered instead of individual units. This proceddure is usually based on geography, and it's useful due to its efficiency regarding cost and time.
There are a few disadvantages, though: it might not be diverse enough to be significant, and it's possible that some elements of other groups (in this case, other districts) share some features.
Answer:
Explanation:
China is 5 hours ahead of Ethiopia.
Answer:
Speed of sound wave v=νλ=2000×0.35=700 m/s
Distance d=1.5 km=1500 m
Time t=vd=7001500≈2 s
I believe the answer is: broken glass.
This proof that the grouping/representing process of a certain events or objects. This process usually resulted in the creation of words or actions that would ignite other memory due to its relevance. (in the example above, it's the word 'smahed' and actual broken glass.<span />
Answer: independent concepts (for the first line) and ends of continuum for the end
Explanation:
