Question

a) Perform the following calculations on the measurements and express your answers to reasonable number of significant figures and decimal places.
i) 108.7 cm + 0.35 cm- 0.105 cm
ii) 103.47 g m/L* 20.3 mL
b) Explain why uncertainty of measurement is important in science and engineering.
c) With the aid of an illustration, explain the meaning of accuracy and precision