Let's perform a detailed estimation of the current population of China using scientific notation.
Given:
The population of China is 1,244,130,000 people.
Step-by-Step Solution:
1. First, express the given population in standard form.
- The population is 1,244,130,000 people.
2. To convert this number into scientific notation, we need to identify how many places we move the decimal point to get a number between 1 and 10.
- The given number is 1,244,130,000.
- Moving the decimal point 9 places to the left, we place it after the first digit to get 1.24413 (i.e., [tex]\(1.24413 \times 10^9\)[/tex]).
3. The scientific notation representation of the population is [tex]\(1.24413 \times 10^9\)[/tex].
4. Next, we need to choose the best estimate based on the available options. We need to round [tex]\(1.24413\)[/tex] to the nearest whole number.
- Rounding 1.24413 to the nearest whole number is 1.
5. Hence, the best estimate for the population in scientific notation is [tex]\(1 \times 10^9\)[/tex].
Therefore, the correct answer from the available choices is:
D [tex]\(1 \times 10^9\)[/tex]
