hey
how do u go about solving questions like this.
Bla captured this many fish, tagged em n released em. then he cought some again but only a little bit were tagged. then they ask for the whole amount. how do u do it??
ok well heres an example...
if u catch 120 fish from a lake.. tag them then release then.... then u catch a randome sample of 80 fish and 6 are tagged... find the population of fish in the lake...
let x represent the population and use a cross multiplying technique...
120 6
----------- = -----------
x 80
cross mutiply to find x (the population)
x= (120 x 80)
--------------
6
= 1600 fish in the lake