Question

Construct index number of industrial production from the following data:

Industry	Number of Items		Weight
	Base Year	Current Year
Mining and Quarrying Manufacturing Electricity and Electronics	35 413 10	107 1225 27	10 85 5

Answer 1

Industry	Base year (q0)	Current year (q1)	Relatives values R$=\frac{{\mathit{q}}_{\mathit{1}}}{{\mathit{q}}_{\mathit{0}}}\mathit{\times }100$	Weight (W)	WR
Mining and quarrying Manufacturing Electricity and electronics	35 413 10	107 1225 27	305.71 296.61 270	10 85 5	3057.1 25211.85 1350
				∑W = 100	∑RW = 29618.95

Index number
$$\begin{gathered} =\frac{\sum RW}{\sum W} \\ =\frac{29618.95}{100}=296.19 \end{gathered}$$