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Published bySheena Bishop Modified over 9 years ago
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Population of Ireland By Mrs. Banks
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Population of Ireland x-valueYear Population in millions (y-value) First Differences Successive Ratios 019163.14 --- 119262.97 -0.170.95 219362.97 0.001.00 319462.96 -0.011.00 419562.90 -0.060.98 519662.88 -0.020.99 619763.37 0.491.17 719863.54 0.171.05 819963.63 0.091.03 920064.24 0.611.17 Ireland’s population is exponential because the successive ratios are close to the same number. The average ratio is 1.04 which means the population is growing by 4% each year.
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Functions Explicit Function: y=3.14*1.04^x Recursive Function: P y *1.04 = P y+1 Prediction for 2026 is 4.59 million assuming the population grows by 4% each year.
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Model I believe my prediction is fairly accurate because it follows the general trend or direction of both my data and explicit function.
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Note from Mrs. Banks Feel free to put each fact on its own slide and add pictures as well as a design to make your presentation more visually appealing and professional. You will be presenting this information to the class on next Monday 2/2/2015!
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