The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?
Q1. The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?
Answer: 0.5904
Explanation: P(at least one prize) = 1 − P(none) = 1 − (0.8)⁴ = 1 − 0.4096 = 0.5904.