| Author(s): |
Raghu N. Kacker; James F. Lawrence; |
| Title: |
Trapezoidal and Triangular Distributions for Type B Evaluation of Standard Uncertainty |
| Published: |
February 26, 2007 |
| Abstract: |
A Type B standard uncertainty is determined from a probability distribution specified by scientific judgment based on all available information. The ISO-GUM discusses symmetric distributions only. Sometimes an asymmetric distribution is needed. We describe a trapezoidal distribution that may be asymmetric. Triangular and rectangular distributions are special cases of trapezoidal distribution. Then we discuss how a trapezoidal distribution may be used to determine an asymmetric correction for bias and its associated standard uncertainty. |
| Citation: |
Metrologia |
| Volume: |
44 |
| Pages: |
pp. 117 - 127 |
| Keywords: |
ISO-GUM;measurement uncertainty;rectangular distribution uncertainty;variance components |
| Research Areas: |
Math |
| PDF version: |
 Click here to retrieve PDF version of paper (202KB) |
