Need just the answers. Basically, in the question where there is a question mark (?) should be replaced by the solution.
Error of input quantities are assumed to be statistically independent
Please see the attached file (with bilingual instruction).
Recall that as all the errors are statistically independent, the variance of a sum is a sum of variances, and the standard deviation is the respective square root.
Recall also that if we have some f(x,y, ...) the variance of the function ...
Uncertainty exercises are solved.