mean of twenty observations is 15. if two observations 3and14 are replaced by 8and9, then the new mean will be-​

Question

mean of twenty observations is 15. if two observations 3and14 are replaced by 8and9, then the new mean will be….​

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Athena 2 weeks 2021-10-01T21:40:11+00:00 2 Answers 0 views 0

Answers ( )

  1. Emma
    0
    2021-10-01T21:41:17+00:00

    Answer:

    Since 3 and 14 r replaced by 8 and 9. There is no change in sum of observations or no. Of observations so…the mean remains same that is 15

    Hope it helps….

  2. Emma
    0
    2021-10-01T21:41:53+00:00

    Answer:

    no any changes in mean

    mean answer same 15

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18:9+8+9*3-7:3-1*13 = ? ( )