1. What is Risk Given Reliability?

Risk Given Reliability calculates the probability of occurrence of an event at least once over a period of n successive years based on the reliability of a system or component.

2. How Does the Calculator Work?

The calculator uses the Risk formula:

Where:

• \( Risk \) - Probability of occurrence of an event at least once
• \( Reliability \) - Probability that a project does not fail its purpose during its design life

Explanation: The formula calculates risk as the complement of reliability, representing the probability that the system will fail at least once during its operational period.

3. Importance of Risk Calculation

Details: Accurate risk assessment is crucial for project planning, safety analysis, and decision-making processes in engineering and project management.

4. Using the Calculator

Tips: Enter reliability value between 0 and 1. The calculator will compute the corresponding risk value.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between risk and reliability?
A: Risk and reliability are complementary probabilities. Risk = 1 - Reliability, meaning they sum to 1.

Q2: What values can reliability take?
A: Reliability values range from 0 to 1, where 0 means certain failure and 1 means perfect reliability.

Q3: How is this formula used in practice?
A: This formula is widely used in engineering, project management, and risk assessment to quantify the probability of failure.

Q4: Can reliability be greater than 1?
A: No, reliability is a probability and must be between 0 and 1 inclusive.

Q5: What does a risk value of 0.1 mean?
A: A risk value of 0.1 means there is a 10% probability that the event (failure) will occur at least once during the specified period.