Question

1. the average wait time for callers on a tech support line is shown on the graph. describe the change in average wait time over the course of a day.

Explanation:

The graph shows that initially, the average wait time increases. Then it plateaus (stays relatively constant) with a slight upward blip. After that, it decreases until it reaches zero.

Answer:

The average wait time starts at zero, increases to a certain level, remains relatively stable (with a minor increase), then decreases back to zero over the course of a day.