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help_people

  • one year ago

The table below shows data for a class's mid-term and final exams: Mid-Term Final 100 98 100 95 100 93 95 91 95 88 92 82 92 78 88 78 85 65 75 60 Which data set has the largest IQR? Mid-term exams Final exams They have the same IQR There is not enough information

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  1. help_people
    • one year ago
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    @perl @Loser66 @phi

  2. Loser66
    • one year ago
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    What is IQR?

  3. help_people
    • one year ago
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    interquartile range

  4. help_people
    • one year ago
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    @Loser66

  5. phi
    • one year ago
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    you should find the median of each data set divide the data set into two halves: one below and one above the median then find the median of each half IQR= top median - bottom median

  6. Loser66
    • one year ago
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    What is the median of the mid-term set?

  7. phi
    • one year ago
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    because the numbers are sorted, and you have 10 numbers total, look at the middle number of the first 5 (i.e the 3rd number on the list) and the middle number of the lower 5 (i.e. the 3rd from the bottom) subtract those two numbers

  8. help_people
    • one year ago
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    there are two medians 95 and 92

  9. help_people
    • one year ago
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    for the mid-term

  10. phi
    • one year ago
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    look at the middle number of the first 5 (i.e the 3rd number on the list)

  11. phi
    • one year ago
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    in other words, if you look only at 100 100 100 95 95 (the first 5 numbers of the mid-term) the median of those is the middle number and is 100

  12. phi
    • one year ago
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    now do the same thing for the bottom 5 numbers 92 92 88 85 75

  13. help_people
    • one year ago
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    median of those is 88

  14. phi
    • one year ago
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    you should get 88 for the median of the bottom 5 numbers. now you can find the IQR 100 - 88

  15. help_people
    • one year ago
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    12

  16. phi
    • one year ago
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    now do the same thing for the other data set

  17. phi
    • one year ago
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    find the 3rd number on the top 5 find the 3rd number of the bottom 5 subtract

  18. help_people
    • one year ago
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    93 and 78? @phi

  19. phi
    • one year ago
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    yes, now find the iqr by subtracting big - little

  20. help_people
    • one year ago
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    um ok 15

  21. phi
    • one year ago
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    finally, which data set has the bigger iqr?

  22. help_people
    • one year ago
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    final

  23. phi
    • one year ago
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    yes

  24. help_people
    • one year ago
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    ty may you help w. two more?

  25. phi
    • one year ago
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    if you make a new post, please

  26. help_people
    • one year ago
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    ok

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