Answer:
The statements here are not correct.
Step-by-step explanation:
The statements here are not correct. Let take an example of Mc Donald's Big Mac Burger. Let say you need to pay 1 USD to buy 1 Big Mac in USA. For the same Big Mac in Japan, you need to pay 130 JPY for it. So, the exchange rate is now USD/JPY = 130 (in fact exchange rate in purchasing power parity is based on a pool of goods rather than single one).
The exchange rate only reflect to conversion rate between two currencies so that the amounts in both countries can buy identical products.
Weath of countries, in fact, is measured using GPD per capita or national disposible income.