question archive A lake contains 100 ?sh, 20 of which have been tagged as part of a study
A lake contains 100 ?sh, 20 of which have been tagged as part of a study
Subject:StatisticsPrice: Bought3
A lake contains 100 ?sh, 20 of which have been tagged as part of a study. Four ?sh are chosen at random (without replacement for parts a, b and c) from the lake. Find the chances of each of the following events. Express your answers as percentages, rounding to the nearest hundredth of a percent. (a) All of the chosen fish are tagged. Answer: % (b) None of the chosen fish are tagged. Answer: % (c) At least two of the chosen fish are tagged. Answer: % (d) If I were to chose the fish with replacement (After choosing a ?sh, I would put it back in the lake). What's the probability that the second fish is the same as the first fish I chose? Answer: %
