Question

Equation of pair of straight lines drawn through (1, 1) and perpendicular to the pair

Answer 1

3 Ratio and Regression Estimators

For example, in a household expenditure survey Y may be annual household expenditure and X may be household size.

Ratios of these variables may be relevant and interesting.

For example per capita expenditure is represented by the population ratio R=YT/XT=ˉY/ˉX.