Problem 1 a pond contains 42 fish. seven are caught, tagged, and released back into the pond. after the tagged fish have had a chance to mingle with the others, seven fish are caught and released, one at a time. assume that every fish in the pond is equally likely to be caught each time, regardless of which fish have been caught (and released) previously (this is not a realistic assumption for real fish in a real pond). the chance that among the fish caught in the second stage (after the tagging), at least zero and at most three were previously tagged is (q1)