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CA Foundation doubt

The mean of the set of 20 observation is 18.3. The mean is reduced by 0.6 when a new observation is added to the set.The new observation is: a) 17.6 b)18.9 c)5.7 Please solve this question with explan

Asked by Azra14 May 2024501 views

4 answers

  1. Nikhil · 14 May 2024

    C 5.7

  2. Madhavi · 14 May 2024

    5.7 answer hai

  3. MR · 14 May 2024

    (c) As 18.3 is the average of 20 observation so total is 366 then add 5.7 it becomes 371.7 also the observation becomes 21 so divide 371.7 by 21 so it comes to 17.7 which is given .

  4. Anumula · 14 May 2024

    5.7 is the answer

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