Question

The mean of the exchange rate in force during a period is known as​

Answer 1

Explanation:

Average rate is the mean of the exchange rates in force during a period.

Answer 2

Introduction:

The average represents how much the function changed per unit on average throughout that time. It is calculated using the slope of the straight line joining the interval's endpoints on the function's graph.

Explanation:

The average rate is the mean of the exchange rates in effect for a certain time period.

Therefore, the answer is average rate.