What is the overall error if a quantity \(Q \) is dependent on three other quantities \(q_{1},q_{2}\) and \(q_{3}\) related such that \(Q=K\times \left ( q_{1} \right )^{n_{1}}\times \left ( q_{2} \right )^{n_{2}}\times \left ( q_{3} \right )^{n_{3}}\).
