Question

the following table gives the birth and death rates for 4 countries in 3 different years. find the net growth rate due to births and deaths (neglect immigration) in each of the 3 years for country c. based on these trends predict how the countrys population will change in the next 20 years.

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$$\begin{tabular}{c|ccc|ccc} & \\multicolumn{3}{c|}{birth rate/1000} & \\multicolumn{3}{c}{death rate/1000} \\\\ country & 1980 & 1995 & 2019 & 1980 & 1995 & 2019 \\\\ \\hline a & 14.6 & 10.5 & 9.5 & 11.8 & 11.5 & 11.1 \\\\ b & 23.9 & 20.2 & 19.7 & 6.8 & 6.5 & 6.2 \\\\ c & 10.5 & 11.6 & 12.2 & 11.8 & 10.9 & 10.1 \\\\ d & 16.7 & 14.3 & 13.6 & 8.6 & 8.8 & 8.2 \\end{tabular}$$

country cs net growth rate in 1980 was \boxed{-1.3} per 1000.
(type an integer or a decimal.)

country cs net growth rate in 1995 was \boxed{0.7} per 1000.
(type an integer or a decimal.)

country cs net growth rate in 2019 was \boxed{2.1} per 1000.
(type an integer or a decimal.)

choose the best prediction about country cs future population based on the general trends in these 3 years.
a. the countrys population will increase.
b. the countrys population will remain the same.
c. the countrys population will decrease.

Explanation:

Calculate net growth rate for 1980

Using the Net Growth Rate knowledge point

$$ \text{Net Growth Rate}_{1980} = \text{Birth Rate}_{1980} - \text{Death Rate}_{1980} = 10.5 - 11.8 = -1.3\text{ per }1000 $$

Calculate net growth rate for 1995

Using the Net Growth Rate knowledge point

$$ \text{Net Growth Rate}_{1995} = \text{Birth Rate}_{1995} - \text{Death Rate}_{1995} = 11.6 - 10.9 = 0.7\text{ per }1000 $$

Calculate net growth rate for 2019

Using the Net Growth Rate knowledge point

$$ \text{Net Growth Rate}_{2019} = \text{Birth Rate}_{2019} - \text{Death Rate}_{2019} = 12.2 - 10.1 = 2.1\text{ per }1000 $$

Predict future population trend

Using the Population Trend Prediction knowledge point

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Answer:

Question 1

Country C's net growth rate in 1980 was <blank>-1.3</blank> per 1000.

Question 2

Country C's net growth rate in 1995 was <blank>0.7</blank> per 1000.

Question 3

Country C's net growth rate in 2019 was <blank>2.1</blank> per 1000.

Question 4

• A. The country's population will increase. (Correct answer)
• B. The country's population will remain the same.
• C. The country's population will decrease.