Answer:
Hence correct option is b i.e 7.2 yuan.
Explanation:
Given data;
candy bar cost is $1
Nominal exchange rate = 6 yuan equal to 1 dollar
Real exchange rate is = 1.2 dollar per 6 yuan
Therefore price for one candy at china will be 
The price of candy bar at china is = 7.2 yuan
Hence correct option is b i.e 7.2 yuan.
C - 'cause the society is industrializing and needs factory workers
Answer:
Answer is gathering evidence
Explanation:
gathering evidence is taking notes and allows you to do the three other things such as organizing ideas, developing a topic and writing a thesis.
Answer:
D. sample: population
Explanation:
Sample: In psychological research, the term sample is defined as a particular group of items, people, or objects that are being taken-out from a specifically large population for measurement. A research sample should be considered as representative to a specific population from where it has been taken out so that a researcher can generalize his or her findings from the sample related to the population considered as a whole.
Population: In psychological research, the term population refers to a large collection of objects or individuals which form a basis of a scientific study or query. It is also referred to as a well-defined collection of specific objects or individuals that possesses familiar characteristics.
In the question above, the given statement represents the sample and the population.