The majority is of Arabs, Turkmen, and Kurds.
        
             
        
        
        
I'm considered an elder. I have a wonderful caregiver (my wife) who has come to understand that the vows we took nearly 37 years ago have come to the worse part of "do you take this man for better or for worse, in sickness and in health ... " 
I could not remain where we are without her. For me the caregiver is the most important consideration, but I doubt very much that that is the answer you are looking for. 
The actual answer is the frailty of the individual. A close second is likely the number of chronic illnesses one has. 
They're all important and each could be argued on an individual basis. The number of chronic illnesses is not an issue if they are all in remission, which in an elder, is a very lucky state.
It really comes down to how well you can take care of yourself even on a limited basis. That's the deciding factor. Is your cancer leaving you alone even for a short time? Is your blood pressure controlled by medication? Have you accepted you condition whatever it is? Can you do anything to prevent your loved ones from worrying? Can you remember where you put your car keys? If you answer yes to most of them, you're frail, but you're good to go or to stay.
 
        
             
        
        
        
Such a society would be a utopian society. A utopian society symbolizes people's hopes and dreams. Utopia turns to be synonymous with something not possible due to the fact a perfect existence in an excellent society seems to be out of reach.
Utopia-
If one were living in a perfect or utopian society, it would mean that all their desires and hopes could be fulfilled. This is similar to the hypothesis given in the question. in such a circumstance, everybody has an equal opportunity to everything and everyone is at an equal footing. 
The starting line for everyone is the same in such a society and it is only ones hard work and talent that can bring one forward. 
in the real world today, things like your class, caste economic status, education and many other things influence where you reach in life.
Learn more about utopia here: brainly.com/question/13759238
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The scientist is probably trying to eliminate <u>"experimenter bias".</u>
In research, an experimenter bias, otherwise called research bias, happens when an analyst unknowingly influences results, information, or a member in a test because of abstract impact. It is troublesome for people to be altogether target which isn't being affected by close to home feelings, wants, or predispositions.  
Experimenter bias can happen at any period of the exploration procedure from the underlying foundation research to the last review of results. It is essential to consider experimenter predisposition as a conceivable issue in any examination setting. Steps can be taken to diminish the probability of its event, for example, leading visually impaired investigations and discovering non-one-sided information authorities.