there r many ways to measure value, rarity, weight, how hard it was to make, who made it, and how old it is.
measured properties that have different values at different time are
horizontal
vertical
vertical
They are data.
A
Data
To take appropriate decisions based on measured values
Interpolation.
Latitude is measured from the equator, with positive values going north and negative values going south.
Depends on what... it can be measured in different values such as inches, meters, yards etc.
Nominal Variables