The Mathematical Term ∑X Is the Numerator for

question 72

Multiple Choice

The mathematical term ∑x is the numerator for

• A)the population mean
• B)the sample mean
• C)both A and B
• D)None;this term is not in the numerator for any calculation.

---

Definitions:

FR(%)

Failure Rate (Percent), a measure often used in reliability engineering to indicate the likelihood of failure per unit of time.

MTBF

Mean Time Between Failures, a reliability metric that measures the average time between failures of a system or component.

System Reliability

The probability that a system will perform its intended function without failure over a specified period.

System Reliability

The probability that a system will perform its intended function without failure under specified conditions for a designated period of time.