Please explain why you choose the answer Circle the correct

Please explain why you choose the answer

Circle the correct answer Error propagation in a computed variable from a measurement variable(x) can be estimated as follows(mu_x is uncertainty in x) dy/dt mu_y dy/dx |_x=x * u_x dy/dx|_ x=x dy/dx|x=x * u_y A realize estimate of the total uncertainty in the measurement due to the element errors can be computed using; the root mean squares method the reversal least squares method the root sum squares method none of the above

Solution

1.(i) u_y = dy/dt *u_x

so correct answer is option (b)

1 (ii) The best method to estimate total uncertaintly due to the elemental errors is using the RSS method. Total uncertainty for the combined system is found by use of the RSS method using the design-stage uncertainties of the two devices.

Option (C)