inflation | Premium-rate telephone number | Data rate units | Rate of return | Mortality rate | Erythrocyte sedimentation rate | bit rate | Volumetric flow rate | Total fertility rate | sixth-rate | Inflation | Heart rate | growth rate | E-Rate | Clock rate | Bit rate | Basic Rate Interface | United States cities by crime rate | Third-rate | Survival rate | Sampling rate | Rate of penetration | Mutation rate | List of countries by unemployment rate | Horizontal scan rate | heart rate | Fixed interest rate loan | Fixed exchange rate | first-rate | Financial Institutions Regulatory and Interest Rate Control Act of 1978 |
In physical systems, the n dimensions may be, for example, two or three positional coordinates for each of one or more physical entities; in economic systems, they may be separate variables such as the inflation rate and the unemployment rate.