None of the chosen fish are tagged. Answer: ____________% (b) At least two of the chosen fish are tagged. Answer: ____________% (c) If I were to chose the fish with replacement (After choosing a fish, 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?
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A lake contains 100 fish, 20 of which have been tagged as part of a study. Four fish 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) None of the chosen fish are tagged. Answer: ____________%
(b) At least two of the chosen fish are tagged. Answer: ____________%
(c) If I were to chose the fish with replacement (After choosing a fish, 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: ____________%
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