Question

in 1950, the population of a small suburb in Los Angeles California was 20,000. The birth rate was measured at 25 per 1000 population per year, well, the death rate was measured at 7 per 1000 population per year. Immigration was measured at 600 per year while immigration was measured at 200 per year. Calculate the population size in 1951.

Answer 1

To calculate the population size in 1951, we need to take into account the birth rate, death rate, immigration, and emigration. The net population growth rate can be calculated by subtracting the death rate and emigration rate from the birth rate and immigration rate. By using the given rates, the population size in 1951 can be estimated to be approximately 20,418.

Step-by-step explanation:

To calculate the population size in 1951, we need to take into account the birth rate, death rate, immigration, and emigration. The net population growth rate is calculated by subtracting the death rate and emigration rate from the birth rate and immigration rate.

1. Birth rate: 25 per 1000 population per year. This means there were 25 births for every 1000 people in the population.
2. Death rate: 7 per 1000 population per year. This means there were 7 deaths for every 1000 people in the population.
3. Immigration: 600 people per year. This means 600 people moved into the suburb from outside.
4. Emigration: 200 people per year. This means 200 people moved out of the suburb to other places.

To calculate the net population growth rate in 1950, we can use the formula:

Net growth rate = (birth rate - death rate) + (immigration rate - emigration rate)

Now let's calculate the net growth rate for 1950:

1. Net growth rate = (25 - 7) + (600 - 200)
2. Net growth rate = 18 + 400
3. Net growth rate = 418

The population size in 1951 can be calculated by adding the net growth rate to the population size in 1950:

1. Population size in 1951 = 20,000 + 418
2. Population size in 1951 ≈ 20,418

Therefore, the population size in 1951 was approximately 20,418.