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anonymous

  • one year ago

How will adding the value 1000 affect the mean and median of the data set 5, 10, 17, 19, 20? A. The mean and the median increase by the same amount. B. The median increases and the mean stays the same. C. The mean increases and the median stays the same. D. The mean increases more than the median increases.

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  1. anonymous
    • one year ago
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    okay, do you know what the mean and median is?

  2. anonymous
    • one year ago
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    yes

  3. anonymous
    • one year ago
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    |dw:1434578968084:dw|

  4. anonymous
    • one year ago
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    so 17 plus 19/2=

  5. anonymous
    • one year ago
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    26.5

  6. anonymous
    • one year ago
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    17 plus 19 is 36

  7. anonymous
    • one year ago
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    ya i now that

  8. anonymous
    • one year ago
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    divide that by 2 and get 18

  9. anonymous
    • one year ago
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    how did you come up with 26.5

  10. anonymous
    • one year ago
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    i did 17+19/2=

  11. anonymous
    • one year ago
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    okay let me rewrite that 17+19=? divide that answer by 2

  12. anonymous
    • one year ago
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    ok and it = 18

  13. anonymous
    • one year ago
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    okay without the 1000 the median is 17...so he median increased by one

  14. anonymous
    • one year ago
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    which means we can eliminate C

  15. anonymous
    • one year ago
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    and we know the mean will not stay the same because we are adding another huge number

  16. anonymous
    • one year ago
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    ok

  17. anonymous
    • one year ago
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    Which leaves us with A and D

  18. anonymous
    • one year ago
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    And just looking at the set of numbers we know the mean will not increase by one (because the median increased by one)

  19. anonymous
    • one year ago
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    Which gives you?

  20. anonymous
    • one year ago
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    so its d?

  21. anonymous
    • one year ago
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    Yes

  22. anonymous
    • one year ago
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    yaaaaaaay!!!!! thx

  23. anonymous
    • one year ago
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    You did a great job as well

  24. anonymous
    • one year ago
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    medal for you and thx

  25. anonymous
    • one year ago
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    and one for you for not rushing the answer :)

  26. anonymous
    • one year ago
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    thx

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