The statement above is talking about the Drive Reduction Theory. This theory, proposed by Clark Hull in 1943, talks about a certain drive that develops when a disturbance occurs in an individual's homeostasis or simply put, when someone has physical needs that need to be met. 
        
             
        
        
        
Patricia Robertson is interested in seeing the intended
choices of the voters because she is running for Congress from the 6th
District in her state. In this case, is study’s population is constituted by
all the registered voters in her district.
 
To add, using of statistics to analyze
characteristics or changes to a population is called
population statistics. Analyzing anything from changes to local small-scale
changes to global demographic changes is also a job done by population
statistics. A scenario that shows this is the analysis of the global changes
that exhibits that the population growth has slowed, declination of infant mortality
rates and the small increase in the aged.
 
        
             
        
        
        
Answer:
<u>"the independent variable—whether or not the students receive money for doing puzzles—has a significant effect, such that students in the paid group spend less time doing puzzles during their break time".</u>
Explanation:
<u>Independent variable:</u> In psychological research, the term "independent variable is described as a variable that is being manipulated, altered or changed by an investigator or researcher in order to see or notice its effect on the dependent variable of the given study. Thus, the independent variable has a direct impact on the dependent variable.
<u>In the question above, the research finds that "the independent variable—whether or not the students receive money for doing puzzles—has a significant effect".</u>
 
        
             
        
        
        
Answer:
There is family,religon and gender. 
Explanation:
 
        
                    
             
        
        
        
Hey!
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Answer: 
d) light
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Explanation:
In science matter is a substance, gas, or liquid that contains inertia and uses physical space. Air, milk, and rocks take up physical space. Light is a form of energy not matter.
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Hope This Helped! Good Luck!