Calculate the best estimate for the conductance G?

A student is measuring the conductance of a component.
He measures the current in the component as I = 0.24 + 0.01 A
and the p.d. across the component as V = 5.4 + 0.1 V.

Calculate the best estimate for the conductance G

I’m not sure how you’re suppose to work this out, could you explain what they mean and how to work it out?

also.

State an estimated value for the + uncertainty in the measurement of G.