Give one reason why the answer to part (f)(i) is an estimate.
How to approach this question
Look back at the information you were given to perform the calculation. Were the numbers exact or were they approximations? The question itself gives clues.
Full Answer
The population of Germany (80,000,000) was an approximate value. / The birth rate (8.5) was rounded to 1 decimal place.
The calculation in the previous part resulted in an estimate rather than an exact figure for two main reasons:
1. **Approximate Population:** The question states, "The population of Germany in 2017 was **approximately** 80 000 000". Since one of the key inputs to the calculation is an approximation, the output must also be an approximation.
2. **Rounded Birth Rate:** The birth rate for Germany given in the table is 8.5, which is rounded to one decimal place. The true birth rate might be slightly different (e.g., 8.52 or 8.48). Using a rounded value in a calculation will lead to an estimated result.
Common mistakes
✗ Giving a vague answer like "the numbers weren't accurate".
✗ Stating that the calculation itself was an estimate, rather than the input data.
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