Chapter 1 Exercises

Table E11 gives estimated midyear demographic data for the United States and Mexico for the calendar years 2012–2013. Use these data to calculate the estimated net migration for Mexico. Use the blank cells in the table for recording your computations and use the United States column as an example. Remember, the formula needed for these calculations is the growth equation for an open population:
P_{2} – P_{1} = B_{(1,2)} – D_{(1,2)} + M_{(1,2)}

Compute the estimated crude rates for Mexico in Table E12. Use the data from Table E11 to compute these rates, and the United States column of Table E12 as a model. The formula* to use for each of these is:
P_{2} – P_{1} = B_{(1,2)} – D_{(1,2)} + M_{(1,2)}
Normally only the crude growth rate and the rate of natural increase are percentages (per hundred), while births and deaths are expressed as crude rates per thousand. In the above case, then, the U.S. CBR normally would be expressed as 14.0 and the CDR as 8.0 per 1,000 people. But for the purposes of consistency in this exercise we calculate per 100 people.
These are only rough estimates by the Census Bureau’s International Data Base; round your rates to the nearest hundredth.
Charts
Figure 1.2
Figure 1.3