Practicing and exploring

Test your knowledge and understanding by answering some questions, get some hands-on practice, and explore the topics covered in this chapter with deeper research.

Exercise 2.1 – Test your knowledge

What type would you choose for the following "numbers"?

1. A person's telephone number.
2. A person's height.
3. A person's age.
4. A person's salary.
5. A book's ISBN.
6. A book's price.
7. A book's shipping weight.
8. A country's population.
9. The number of stars in the Universe.
10. The number of employees in each of the small or medium businesses in the UK (up to about 50,000 employees per business).

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