Fish population in fishery science, spawner-recruit func-
tions are used to predict the number of adult fish r in next
year's breeding population from an estimate s of the num-
ber of fish presently spawning.
(a) for a certain species of fish, r = as/(s + b). esti-
mate a and b from the data in the following table.
year
number spawning
2004 2005 2006
40,000 60,000 72,000
(b) predict the breeding population for the year 2007.