He once participated In the Peloponnesian war
Marginalism is the study of how much extra use is gained from incremental increases in the quantity of goods created, sold, or consumed.
Option: A
Explanation:
Marginalism is an important theory of economics. It is the study of quality of products for judging its power to serve extra use by increasing its number incrementally. Marginalism prevails in that condition where quantity of products slightly increase in respect of creation, selling and consumption.
Marginalism does not exist in the situation of no surplus or no shortage means in equilibrium condition. A good's capacity of giving extra service on extra use is called marginal service capacity or marginal productivity. For reaching the satisfaction level of buyers extra use of increased quantity of good is required.
Answer:
An observational study of an association between two variables.
Explanation:
In the given scenario, it is an observational study of an association between two variables. The variables being :
- Explanatory variable (independant variable / predictor variable) may explain or influence changes in a response variable.
- Response variable (dependant variable) measures an outcome of a study.
Observational study observes individuals and records variables but doesn't attempt to influence the response (does not impose a treatment). It allows the researcher to directly observed the behavior of inteest rather than rely on the subject's self-descriptions (Survey) thus allowing the researcher to study the subject in its natural environment, thus removing the potentiallybased effect of the unnatural laboratory setting on the subject's performance.
<span>In order to determine how well an economy is doing one should use the Gross Domestic Product. Gross Domestic Product is a way to measure the expenses while adjusting for the difference in cost of living in different countries and the difference in cost of currency.</span>
