阿摩線上測驗
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阿摩線上測驗
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3. (7%) (8%) Let X = Rcosθ and Y a Rsin θ, where R is a positive random variable on (0,∞), θ is a uniform random variable on (0, 2π), and R and θ are mutually independent. Derive the corresponding distributions of X/Y and 2XY/