Define risk and explain what is meant by acceptable risk.

In this report, you will need to include the following objectives in the context of a nuclear power plant

Define risk and explain what is meant by acceptable risk.
Briefly explain the Probabilistic Risk (Safety) Assessment (PRA) approach
List and briefly describe the various techniques used in PRA.
Outline a PRA model
Define Core Damage Frequency (CDF) and Large Early Release Frequency (LERF).
In addition to content, the report you submit needs, at least, to include: