Why do countries most often create trade agreements?

to limit imports
to reduce tariffs
to establish quotas
to decrease competition

Which of the following are considered needs? check all that apply

Uknow what i love about i ask a dumb question it is immediately answered but when i ask a real question it take like an hour to get answered

Statistical process control charts: a. indicate to the operator the true quality of material leaving the process. b. display upper and lower limits for process variables or attributes and signal when a process is no longer in control. c. indicate to the process operator the average outgoing quality of each lot. d. display the measurements on every item being produced. e. are a graphic way of classifying problems by their level of importance, often referred to as the 80-20 rule.