The statistical data are of two types. These types are

Options

A. technical data and presentation data
B. primary data and secondary data
C. primary data and personal data
D. none of the above

Answer

To answer the question regarding the two types of statistical data, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Identify the Types of Statistical Data**:
- In statistics, data can be classified into two main types.

2. **Define Primary Data**:
- Primary data is the first type of statistical data. It is collected directly by the researcher from original sources for the first time. This means that the researcher gathers the data firsthand, without relying on previously recorded information.

3. **Define Secondary Data**:
- The second type of statistical data is secondary data. This data has already been collected and recorded by someone else, often through primary data collection. Researchers use this pre-existing data for their own analysis and research purposes.

4. **Conclusion**:
- Therefore, the two types of statistical data are:
- Primary Data
- Secondary Data

### Final Answer:
The statistical data are of two types: **Primary Data** and **Secondary Data**.

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