Components with standard uncertainty values less than 1/3 of the largest standard uncertainty should be __________ in the final calculation.

When assessing various components for their influence on a final calculation, a standard practice in uncertainty analysis is to evaluate the standard uncertainty values of each component in relation to the largest value present. If a component's standard uncertainty is significantly lower—specifically, less than one-third of the largest standard uncertainty—it is reasonable to consider it negligible for the purposes of the calculation.

This practice is based on the principle of focusing on the factors that contribute most significantly to the overall uncertainty, which helps streamline the analysis and improve the accuracy of the final result. By disregarding components with minimal influence (in this case, those with standard uncertainties below a third of the largest value), analysts can avoid cluttering the calculation with information that does not meaningfully impact the outcome. This leads to more efficient and clearer results in both practical applications and theoretical considerations.