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             ___      ______     ___      _____   
    ___     / _ \\   /_   _//   / _ \\   / ____|| 
   /   ||  | / \ ||    | ||    | / \ || / //---`' 
  | [] ||  | \_/ ||   _| ||    | \_/ || \ \\___   
   \__ ||   \___//   /__//      \___//   \_____|| 
    -|_||   `---`    `--`       `---`     `----`  
     `-`

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發送短信 : Normal approximations of the number of records in geometrically distributed random variables