Question 241134
 To estimate the size of the bear population on the Keweenaw Peninsula,
 conservationists captured, tagged, and released 50 bears. 
One year later, a random sample of 100 bears included only 2 tagged bears.
What is the conservationist’s estimate of the size of the bear population?
:
let x = estimation of no. of bears
;
{{{2/100}}} = {{{50/x}}}
cross multiply
2x = 100 * 50
2x = 5000
x = 2500 bears