Answer: Damascus and Baghdad.
Explanation:
During the Middle Ages, they were the most essential two centers of the Arab world. According to many historians, between the seventh and the tenth centuries, they were the largest and most developed centers of the world. A high culture and civilization developed in these cities. The development of science and the arts that were among the major segments of the development of the Arab Empire was impressive. The Abbasids moved the 750th capital of the empire from Damascus to Baghdad, which thus became the center of Islamic culture and science.
Under the leadership of Abbasid, Islamic civilization inherited and assimilated the traditions and achievements of many cultures. An incredibly rich culture flourished in the cities, with Baghdad, Cordoba leading, and Cairo. The rise of Islamic civilization was attended by all the nations that are lived under the rule of Islam, including Jews and Christians. Later, the capital was moved to Baghdad and destroyed by the Mongols. Because these were the two largest cities, the most significant number of people lived in them.
The answer for the blank spaces is:
1) Can be Unreliable
2) The living standards include many factors and scenarios, it is quite possible that some or many of them do not qualify to be part of real GDP.
Real Gross Domestic Product (real GDP) is a macroeconomic measure of the estimation of financial output balanced for value changes.This alteration changes the cash value measure, nominal Gross domestic product, into an index for quantity of aggregate output.
In an attempt to reduce the likelihood of a type ii error, the experimenter proposes to recruit a very large group of participants.
In statistical hypothesis testing, a Type I error is actually an incorrect rejection of the true null hypothesis (a.k.a. a "false positive" result or conclusion; e.g., "Innocent person convicted ing"). Rejection of one actually false null hypothesis (also called a "false negative" result or conclusion, e.g. "guilty party not convicted").
Many statistical theories revolve around minimizing one or both of these errors, but unless the outcome is determined by a known and observable causal process, either of these errors can be completely quantified. It is statistically impossible to eliminate You can improve the quality of the hypothesis test by choosing a lower threshold (cutoff) and changing the alpha (α) level. Knowledge of type I and type II errors is widely used in medicine, biometrics, and computer science.
Learn more about type ii error here:
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<span>The correct answer is letter D. Poland. All of the following countries have strong social protections except Poland. The nations that have a strong social protection includes the country of Denmark, Norway and Finland which are part of Schengen countries.</span>