A biology student caught andtagged 50trout in a small lake. After two weeks, the student caught another 40 trout and foundthat 4 of them were tagged— these 4 had beenin theoriginal sample and were caught a secondtime. Whatis the best estimate of the populationof trout in the lake? What might have contributed to the low numberof tagged trout caughtthe second time? How could the student reducethis factor? please someone help me with this question.