Economics · Ch 3 — Organisation of Data
Example of Continuous Variable
3.5.7
Example of Continuous Variable
For a continuous variable such as height (cm) or weight (kg), the inclusive-looking classes are understood to stretch right up to — but not including — the next lower limit. Weights might be written as:
- 30 kg – 39.999… kg
- 40 kg – 49.999… kg
- 50 kg – 59.999… kg, and so on.
Read these as "30 kg and above but under 40 kg", "40 kg and above but under 60", etc. In other words each class covers everything from its lower limit up to (but short of) the start of the next class, so the continuous variable has no gaps. …
Table Table 3.4TABLE 3.4 Frequency Distribution of Incomes of 550 Employees of a Company
| Income (Rs) | No. of Employees |
|---|---|
| 800–899 | 50 |
| 900–999 | 100 |
| 1000–1099 | 200 |
| 1100–1199 | 150 |
| 1200–1299 | 40 |