A software project using an agile approach is facing quality issues with every release, generating many production problems. What should the project manager do to fix the problem and improve the quality?

What are seven consecutive data points on either side of the mean called?

During the execution of an IT project, a project manager warns of the possibility that the main server may fail due to constant, local-area electrical outages. The project manager signs a contract to rent an additional server from a local company.
What strategy is the project manager using?

The project planning is progressing. The team has involved the accounting department to set up a system of codes that the accounting department will use to track work on the project. This is known as what?

A project manager is taking over a project. The former project manager was implementing a major tax reformation. The project team has already applied the modified tax reforms into its finance applications. During the transition, the new project manager realizes that the project charter is missing.