FE Civil Engineering Exam Prep

Category - Civil Engineering

In theory, the weight of an observation is defined to be ______ to the variance (standard error squared) of the observation.
  1. Proportional
  2. Inversely proportional
  3. Equal
  4. None of the above.
Explanation
Answer: B - In theory, the weight of an observation is defined to be inversely proportional to the variance of the observation. That means that the smaller an observation error is, the more accurate the observation will be and therefore, the bigger weight the observation should be assigned. It should be noted that the concept of weights may be based on factors other than standard errors for fields of practice other than surveying.
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