Look at this set of 5 numbers: 1 2 2 2 8 By how much would the mean increase if the number 9 were added to the set?

Question

Look at this set of 5 numbers:
1 2 2 2 8
By how much would the mean increase if the number 9 were added to the set?

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Gerda 2 months 2021-07-22T19:12:32+00:00 1 Answers 5 views 0

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    2021-07-22T19:13:32+00:00

    The current mean is 3 (15/3)

    adding 9 would make the mean 4 (24/6)

    therefore the mean would increase by 1

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )