Discrete data
Homogeneous
Heterogeneous
Raw data
Indians
Greeks
Romans
Hebrews
Jute
Sugar
Cement
Steel
Death rate
Infant mortality
Mortality
Natality
26%
29.7%
27.9%
56.1%
Higher income groups
Middle income groups
Lower income groups
All groups
Simplification of procedures
Choice of ownership structure
Licensing agreements and joint ventures
None
NDP
GDP
NNP
GNP
Mode
Mean
Median
Variance
Foreign trade
Service sector
Industry
Agriculture