Answer:
How did the event occur, why it occurred
Explanation:
Historians ask the basic questions such as who was involved, what was the cause of the event and where did the event occur. These are called historical questions or historical inquiry. The questions involve what, who and where about the event.
Such questions are complex as sometimes historians study about the interrelationship between two or more phenomenons. To answer various historical questions it is necessary to conduct research.
The distance between Folkstone and Coquelles is 30 miles
Answer:
When the Black Death swept over Europe and wiped out a third of its population, it also dismantled Feudalism. Serfs were free to leave the lands of the lords to seek higher wages with the vast labour shortages. The land that had usually been the primary source of wealth was now worthless.
Explanation:
Answer:
The standard deviation of the sample mean is 16.98.
Explanation:
The standard deviation of the sample mean differences is given as by the difference of the 2 standard deviations.This is given as
Difference of standard deviations=21.2-17.6 = 3.6
Now the ratio of the difference to the largest standard difference is given as
Ratio=3.6/21.2=0.1698
Converting this into percentage as 0.1698x100=16.98
The standard deviation of the sample mean is 16.98.
