of 
, 
andare averages of N measurements
= standard dev of X; 
= standard dev of Z; 
= covariance of X,Z
Note: Covariance term is to be included only if there is a reliable estimate
7.2. Formulas for functions of two variables |
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| Standard deviations of reported values that are functions of measurements on two variables are reproduced from a paper by H. Ku (Ku). The reported value, Y is a function of averages of N measurements on two variables. The multipliers of the standard deviations are referred to as 'sensitivity coefficients'. | |
| of ,
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Note: Covariance term is to be included only if there is a reliable estimate |
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