Answer:
Validity
Explanation:
Validity is the statistical term. It was formulated by Kelly. He told that the test will be valid when it measures what it claims to be measured.
For example, a test of personality will measure personality. A test in intelligence will measure the intelligence of a person rather than a personality. There is a distance between the external validity and internal validity. Different types of validity measure the test.
Fractional distillation
heated crude oil enters a tall fractionating column , which is hot at the bottom and gets cooler towards the top. vapours from the oil rise through the column. vapours condense when they become cool enough.
Answer:
Mercantilism is an economic philosophy built around exports and trade. A mercantilist economy tries to increase its wealth by maximizing exports and minimizing imports. ... To increase their wealth and power mercantile nations rely on tariffs, trade leverage and military power to maximize their trade balance.
Explanation:
Economic indicators reveal the statistics of economic activity.
Explanation:
Economic indicators judge the overall condition of a particular country' economy. The main purpose of economic indicator is to attract the foreign investments. There are three categories of economic indicators, they are lagging, coincident and leading indicators respectively.
GDP, debt cycles, inflation, Exchange rate stability, interest rates, gold price, crude oil price, stick markets variations and a country ' financial budget are the economic indicators to observe whether the economy is in boom or in the trajectory of recession and depression. Business cycles are also an important economic indicator.