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Q:

यदि 20 प्रेक्षणों का औसत x1 , x, ....., x20, y है, तो x1 – 101, x– 101, x3 – 101, ....., x20 –101 का औसत है

  • 1
    20y
  • 2
    101y
  • 3
    y – 20
  • 4
    y – 101
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Answer : 4. "y – 101 "

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