A marine biologists tags 100 whates. Later, a sample of 115 whates was gathered and 5 were tagged.?

Estimate the total whate population


2,300


11,500


1,150


5,750

A marine biologists tags 100 whates. Later, a sample of 115 whates was gathered and 5 were tagged.?
Use the ratio 5/115 = 100/x and solve for x.


Cross Multiply to get 11500 = 5*x.


Divide by 5 and get 2300 = x.


Thus there are an estimated 2300 whates in the total population.
Reply:100=5/115 of total





100/(5/115) = 2300
Reply:You mean WHALES - right?





With a L, and not a T in there?





I don't think this question gives us enough information to know what the answer should be.





Is there something missing in the question, that you need to tell us?
Reply:The percent of whates being tagged over the total whale population:


5 : 115%=4.34783%


--%26gt;The total whate population


100:4.34783%=22,988......


--%26gt;The correct answer: A. 2300
Reply:This is an example of Lincoln Index Method.


m2 is the number of marked in second recapture = 5


n2 is the total number in second recapture=115


n1 is number in first capture= 100


N is the total population


m2/n2 = n1/N


5/115 = 100/N


N*5 = 115*100


N= (115*100)/5


N=2300, so the total population is 2300 whales.