題組內容

3. A measurement Y depends on variables (a,b,c), the standard deviation of these variables are known: (σa, σb,σc). Assume that the covariance terms can be ignored, answer the following:

(c) IfY = a/b t ec, where e is natural logarithm. What is the expression of the error term for y? [3%]
 Now assume that the covariance term for a and c, 63070c6500d23.jpg, cannot be ignored.