Question 10 • NC-Math 4
Each bottle has a 0.20 chance of being a winner and a 0.80 chance of not being one. The probability of exactly 3 winners in 8 bottles is (8 choose 3)(0.20)^3(0.80)^5 = 0.1468, which rounds to 0.15. So the correct choice is 0.15.
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