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Discussion

  1. The Average of 5 observation is 15. If three new observation 16.5, 18 and 14.5 be added. Then find the new average.
    1. 14.8
    2. 15.5
    3. 16.2
    4. 15.6
  1. Correct Option: B

    Total of 5 observations = 5 x 15 = 75
    New sum = 75 + 16.5 + 18 + 14.5 = 124
    New Average = 124 ⁄ 8 = 15.5


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