in a market economy, the problem of what goods to produced is solved primarily by

if the weight of five puppies in kilograms are 3.5, 3.0, 4.2, 5.0 and 4.3, then mean weight of the puppies is?

if the coefficient of cross elasticity of demand for goods Y and Z is positive, the two goods are?

The difference between demand and wants is in the

A demand curve parallel to the Y-axis indicates