Question
Do you know what the U.S. population is at this exact moment? The U.S. Census Bureau runs a virtual population clock online that shows an
Do you know what the U.S. population is at this exact moment? The U.S. Census Bureau runs a virtualpopulation clockonline that shows an estimate of the U.S. population. This clock is an estimate based on three components: (1) the average frequency of births, (2) the average frequency of deaths, and (3) the average frequency of international net migration into the United States. Averaging these three variables will give the frequency of increase/decrease in population. (As of September, 2016, the U.S. population will gain a person approximately every 11 seconds.) The three components to this model are reevaluated every month. This is obviously an estimate as one can recognize that the U.S. population varies nonlinearly throughout the month. You can generically model this type of linear population growth by an arithmetic sequence defined by the general term of:
Pn= P(n-1)+ d where d is the average frequency of population increase (or decrease)
n = natural number indicating the nth growth period
P0= initial population size
Initial Post:Create own population growth model word problem for a classmate to solve.
1) Describe your population growth scenario in at least two paragraphs to give context for the math problem. For example, it could be the change in the prairie dog population each month in the open space across from your house or it could be the population size of infected people during the spread of an infectious disease.
2) Explicitly state your population growth model and include the following:
Initial population size, P0
Population size after one growth period, P1(i.e., days, months, or years)
Average change between growth periods, d
Growth model equation of the form Pn= P(n-1)+ d
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