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1014

統計求機率的問題

A soft drink is bottled in two sizes---250g and 1000g. The weight of a 250g bottled dirnk is normally distributed with mean of 255 and standard deviation of 2. The weight of a 1000g bottled drink is normally distributed with mean of 1014 and standard deviation of 5. The weight of 250g bottled drink is independent of the weight of 1000g bottled drink. Find the probability that a randomly selected 1000g bottled drink is less than the total weight of four randomly selected 250g bottled drink.麻煩高手能幫幫忙並附上詳細的計算過程....謝謝

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    normally distributed variables normally distributed data log-normally distributed standard deviation soft drink 機率 統計 問題 瓶子 independent 1014 重量
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