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rainbow_rocks03

  • one year ago

For the data in the table, the mean score is 15 and the median score is 14. How are the mean and median affected when the outlier 42 is added to the data? Table titled Points Scored with data in the first and only row being 12, 13, 14, 19, 16, 14, 11, and 21. A. The mean and median are not affected. B. The mean and median both increase by 3. C. The mean increases by 3, but the median stays the same. D. The median increases by 3, but the mean stays the same. http://static.k12.com/calms_media/media/1417500_1418000/1417708/1/e2741c82049d3fcbc8867f3110e1da2a

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  1. rainbow_rocks03
    • one year ago
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    Click the second link cause the first one didn't work

  2. rainbow_rocks03
    • one year ago
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    also NO DIRECT ANSWERS

  3. rainbow_rocks03
    • one year ago
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    Can you help?

  4. rainbow_rocks03
    • one year ago
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    @amistre64

  5. rainbow_rocks03
    • one year ago
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    IDUT=I Don't Understand This

  6. anonymous
    • one year ago
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    idk

  7. amistre64
    • one year ago
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    the first thing to help us out is to order it, and how do we determine the value of a mean and median?

  8. rainbow_rocks03
    • one year ago
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    we add all the numbers up?

  9. amistre64
    • one year ago
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    also, consider that outliers affect the mean .... so 2 options are just not valid to start with

  10. amistre64
    • one year ago
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    adding up, and dividing is how we find the mean and just picking the number i the middle of an ordered set is how we can determine the median

  11. rainbow_rocks03
    • one year ago
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    IDK what the middle # is.

  12. amistre64
    • one year ago
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    what does the ordered set look like?

  13. amistre64
    • one year ago
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    first off, is the mean going to be affected? lets narrow our options

  14. rainbow_rocks03
    • one year ago
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    BRb

  15. rainbow_rocks03
    • one year ago
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    ok im back

  16. rainbow_rocks03
    • one year ago
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    NO DIRECT ANSWERS

  17. rainbow_rocks03
    • one year ago
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    I always say that when I put a board DON'T YALL FOLLOW DIRECTIONS?

  18. amistre64
    • one year ago
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    focus on the question, not on the spam :)

  19. anonymous
    • one year ago
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    it didnt say ....

  20. rainbow_rocks03
    • one year ago
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    ok

  21. amistre64
    • one year ago
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    will 42 affect the mean?

  22. rainbow_rocks03
    • one year ago
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    yes?

  23. amistre64
    • one year ago
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    it should yes. so that narrows our options

  24. amistre64
    • one year ago
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    so the question is really, how does it affect the median. wht is our ordered set?

  25. rainbow_rocks03
    • one year ago
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    IDK

  26. amistre64
    • one year ago
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    in elementary school grades they teach you how to determine if one number is bigger or smaller than another. .... just order the numbers from smallest to biggest.

  27. rainbow_rocks03
    • one year ago
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    11 , 12 , 13 , 14 , 14 , 16 , 19 , 21

  28. amistre64
    • one year ago
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    good, now we can find the middle

  29. rainbow_rocks03
    • one year ago
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    14?

  30. amistre64
    • one year ago
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    yep, now adding on the 42, what does the middle become? 11 , 12 , 13 , 14 , 14 , 16 , 19 , 21, 42

  31. rainbow_rocks03
    • one year ago
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    14 still

  32. amistre64
    • one year ago
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    11 , 12 , 13 , 14 , 14 , 16 , 19 , 21, 42 >>>>>>>>>>< <<<<<<<<<< yep, still 14 so the median doesnt change, but the mean does

  33. rainbow_rocks03
    • one year ago
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    So my answer is D

  34. amistre64
    • one year ago
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    lets read them A. The mean and median are not affected. ^^^^^ ^^^^^^^^^ false B. The mean and median both increase by 3. ^^^^^^^^^^^ false C. The mean increases by 3, but the median stays the same. ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ true enough D. The median increases by 3, but the mean stays the same. ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ false

  35. rainbow_rocks03
    • one year ago
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    oops that was what I meant

  36. rainbow_rocks03
    • one year ago
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    I meant to say C

  37. rainbow_rocks03
    • one year ago
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    TY for the help

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