A quantity \( Q \) is formulated as \( x^{-2} y^{+3/2} z^{-2/5} \). \( X \), \( Y \) and \( Z \) are independent parameters which have 275 fractional errors of \( 0.1 \), \( 0.2 \) and \( 0.5 \), respectively in measurement. The maximum fractional error of \( Q \) is:
