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anonymous

  • one year ago

If the data represented by the graph is normally distributed, what are the endpoints of the middle 95% of the data? (A) 4.2 and 11.4 (B) 6 and 9.6 (C) 4.2 and 9.6 (D) 2.4 and 13.2 (E) 6 and 11.4

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  1. anonymous
    • one year ago
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    Graph: http://prntscr.com/7j10xx

  2. anonymous
    • one year ago
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    @Vocaloid

  3. perl
    • one year ago
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    You can use the empirical rule

  4. anonymous
    • one year ago
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    The 85 95 thing?

  5. anonymous
    • one year ago
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    I have a hard time interpreting the graph

  6. anonymous
    • one year ago
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    ok so this is the rule i guess 68% of data falls within the first standard deviation from the mean. 95% fall within two standard deviations. 99.7% fall within three standard deviations.

  7. Vocaloid
    • one year ago
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    hard to explain without giving away the answer, but I'll try the middle 95% of the data means two standard deviations above and below the mean |dw:1434758722642:dw|

  8. Vocaloid
    • one year ago
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    each vertical line marks one standard deviation either above or below the mean

  9. anonymous
    • one year ago
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    Alright i'm following along kind of

  10. Vocaloid
    • one year ago
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    the "endpoints" are: 1) the value which is 2 standard deviations below the mean and 2) the value which is 2 standard deviations above the mean

  11. anonymous
    • one year ago
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    ah so 4.2 and 11.4?

  12. Vocaloid
    • one year ago
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    |dw:1434758868756:dw|

  13. Vocaloid
    • one year ago
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    yes! good job!

  14. anonymous
    • one year ago
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    Yay thanks for the help so far vocal :D

  15. anonymous
    • one year ago
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    Yay thanks for the help so far vocal :D

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