Problem Set 2

Problem Set 2 - 56 395 13% 9 8--9 8 377 49 392 13% 10 9--10...

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Probl em Set 2 Year AgeGr oup Age Pop # Pop Dead Age Risk* Age*Dead 1 0--1 0 20000 0 0/2000 0 0 2 1--2 1 20000 0 0% 0 3 2--3 2 20000 0 0% 0 4 3--4 3 20000 0 0% 0 5 4--5 4 20000 0 0% 0 6 5--6 5 20000 0 0% 0 7 6--7 6 20000 0 0% 0 8 7--8 7 20000 0 0% 0 9 8--9 8 20000 0 0% 0 10 9--10 9 20000 0 0% 0 11 10--11 10 20000 0 0% 0 12 11--12 11 20000 0 0% 0 13 12--13 12 20000 0 0% 0 14 13--14 13 20000 0 0% 0 15 14--15 14 20000 0 0% 0 16 15--16 15 20000 0 0% 0 17 16--17 16 20000 0 0% 0 18 17--18 17 20000 0 0% 0 19 18--19 18 20000 0 0% 0 20 19--20 19 20000 0 0% 0 21 20--21 20 0 20000 100% 400000 sum 400000 Mean Of Age @ Death or expectation of life = 400000/20000 = 20 Mean Age @ Death; or Life Expectancy @ birth = (Sum of Age * # of Dead)/ Sum of Total Dead *age - specifi c risk
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of dying = deaths per age group/ # of people in group 0 deaths in for fish, ages 0--1 / 20,000 fish = 0% age specif ic risk of dying 20,000 deaths for fish, ages 20 --21 / 20,000 fish = 100% age specific risk of dying
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C -- G) Year AgeGro up Age Pop # Pop Dead Age*Dea d (dead *(x - mean) % 1 0--1 0 1000 0 0 0% 2 1--2 1 1000 0 0 0% 3 2--3 2 870 113 226 13% 4 3--4 3 757 98 342 13% 5 4--5 4 659 86 342 13% 6 5--6 5 573 74 372 13% 7 6--7 6 498 65 389 13% 8 7--8 7 434
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Unformatted text preview: 56 395 13% 9 8--9 8 377 49 392 13% 10 9--10 9 328 43 384 13% 11 10--11 10 286 37 371 13% 12 11--12 11 248 32 355 13% 13 12--13 12 216 28 337 13% 14 13--14 13 188 24 318 13% 15 14--15 14 164 21 298 13% 16 15--16 15 142 19 278 13% 17 16--17 16 124 16 258 13% 18 17--18 17 108 14 238 13% 19 18--19 18 94 12 219 13% 20 19--20 19 82 11 201 13% 21 20--21 20 71 9 184 13% 808 5901 Mean (age of death) = 5.90053 G) If humans (large scale fishing) is cause of death their probability of death is likely to be greater when fish are have reached maturity. Columbia University EESC V1201.001 : ENVIRONMENT RISKS & DISASTERS (Spring 2010) Pritwiraj Moulik Don Duval Patterson UNI: ddp2110...
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This note was uploaded on 02/21/2010 for the course ENG W2018 taught by Professor Niccolas during the Spring '10 term at Columbia.

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Problem Set 2 - 56 395 13% 9 8--9 8 377 49 392 13% 10 9--10...

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