The Two Countries Most Centrally Involved in the Tisza River

question 30

Multiple Choice

The two countries most centrally involved in the Tisza River pollution are __________.

• A)Hungary and Romania
• B)Hungary and Ukraine
• C)Romania and Bulgaria
• D)Romania and the Britain
• E)Romania and Moldova

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Definitions:

Confidence

In statistics, the degree of certainty or probability that a parameter lies within a specified range of values.

Randomly Sample

A method of selecting a subset of individuals from a population in such a way that each individual has an equal chance of being chosen.

Clear Majority

A situation or result in which a significantly larger portion of a group supports a particular outcome or opinion over all others combined.

Hypothesis Test

A statistical method that uses sample data to evaluate a hypothesis about the properties of a population.