Class 10/30, Life Expectancy

Today in class Frankie brought in doughnut holes from Dunkin Donuts. This was very much appreciated. Especially since he said that he was more than likely going to completely forget to bring anything in.  In class we continued to talk about life expectancy and the different things that can contribute to it.
Notes:

• Crude Birth Rate: number of deaths per 1000 of the population
• Rate of Natural Increase (RNI)- produced by subtracting the death rate from the birth rate, this gives us the annual natural growth, in percentage form, for a country or region
• Net Migration Rate: the difference between the number of persons entering and leaving a country during a year
• An excess of persons entering the country is net immigration, written as a positive number, example: Canada has 5.65 migrants per 1000 population, United States: 2.45 (it was 3.62 in 2015)
• An excess of persons leaving the country is net emigration, written as a negative number, example: Mexico has -1.68 migrants per 1000 population, -3.31 two years ago, -3.11 last year