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anonymous

  • one year ago

MEDAL AND FAN! I KNOW ITS NOT C OR D FOR THE LAST QUESTION SO PLEASE HELLLLLPPPPPPPPP!!!!!!!

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  1. anonymous
    • one year ago
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    The box plots below show attendance at a local movie theater and high school basketball games: Which of the following best describes how to measure the spread of the data? A. The IQR is a better measure of spread for movies than it is for basketball games. B. The standard deviation is a better measure of spread for movies than it is for basketball games. C. The IQR is the best measurement of spread for games and movies. D. The standard deviation is the best measurement of spread for games and movies

  2. anonymous
    • one year ago
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  3. anonymous
    • one year ago
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    Someone please help

  4. amistre64
    • one year ago
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    how do you know its not c or d?

  5. anonymous
    • one year ago
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    @amistre64 are you able to help me?

  6. anonymous
    • one year ago
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    Cuz i got them both wrong

  7. amistre64
    • one year ago
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    so trial and error eh

  8. amistre64
    • one year ago
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    what do you know about standard deviation and IQR?

  9. anonymous
    • one year ago
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    wait one second i just notice the choices are all mixed up

  10. anonymous
    • one year ago
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    Oh i just notice i posted the wrong question..i still need help with this one but theres a another question that i know for sure is not C or D

  11. anonymous
    • one year ago
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    The table below shows data from a survey about the amount of time students spend doing homework each week. The students were either in college or in high school: High Low Q1 Q3 IQR Median Mean σ College stu 50 5 7.5 15 7.5 11 13.8 6.4 High School 16 0 9.5 14.5 5 13 10.7 5.3 Which of the choices below best describes how to measure the spread of this data? (Hint: Use the minimum and maximum values to check for outliers.) A. Both spreads are best described with the IQR. B. Both spreads are best described with the standard deviation. C. The college spread is best described by the IQR. The high school spread is best described by the standard deviation. D. The college spread is best described by the standard deviation. The high school spread is best described by the IQR.

  12. anonymous
    • one year ago
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    Ok so this is the question that the answer is not C or D

  13. anonymous
    • one year ago
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    Sorry for all the confusion lol

  14. amistre64
    • one year ago
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    "The standard deviation is used in conjunction with the mean to summarise continuous data, not categorical data. In addition, the standard deviation, like the mean, is normally only appropriate when the continuous data is not significantly skewed or has outliers." https://statistics.laerd.com/statistical-guides/measures-of-spread-standard-deviation.php

  15. anonymous
    • one year ago
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    So maybe A

  16. amistre64
    • one year ago
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    it appears that if the data is pretty consistent (the box plot is symmetric) then the deviation is suitable, otherwise use the IQR. this is just a cursory reading of the information from the google and i claim no expertise in the matter.

  17. anonymous
    • one year ago
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    Cuz they both do have outliers.. wait are we doing the first or second question

  18. amistre64
    • one year ago
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    thats just information, its relevant to the first, might be to the second ... havent read it yet

  19. anonymous
    • one year ago
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    oh ok well i think it might be A for the first

  20. amistre64
    • one year ago
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    which one do you say is NOT c or d?

  21. anonymous
    • one year ago
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    the second question

  22. amistre64
    • one year ago
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    yeah, movies seems out of whack, so IQR might be better for it, and games is pretty even thruout so deviation for it. as an educated guess.

  23. anonymous
    • one year ago
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    So A?

  24. amistre64
    • one year ago
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    organize the table better on 2 sort it so that we can better see the data

  25. amistre64
    • one year ago
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    A on question 1 seems fair. and like i said, i dont have the expertise to verify its accuracy tho. just information from the google

  26. anonymous
    • one year ago
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    ok one sec..

  27. anonymous
    • one year ago
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    High Low Q1 Q3 IQR Median Mean σ College 50 5 7.5 15 7.5 11 13.8 6.4 High School 16 0 9.5 14.5 5 13 10.7 5.3

  28. anonymous
    • one year ago
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    Ok should be a lot better

  29. amistre64
    • one year ago
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    Q0 Q1 Q2(Mean) Q3 Q4 IQR σ College stu 5 7.5 11(13.8) 15 50 7.5 6.4 High School 0 9.5 13(10.7) 14.5 16 5 5.3

  30. amistre64
    • one year ago
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    both seem a bit off

  31. anonymous
    • one year ago
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    You forgot to add high and low thats why

  32. amistre64
    • one year ago
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    Q0 and Q4 are high and low, Q2 is median

  33. anonymous
    • one year ago
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    i have an idea wait one second

  34. anonymous
    • one year ago
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  35. anonymous
    • one year ago
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    i just put B for now btw

  36. anonymous
    • one year ago
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    @amistre64 please dont leave i really need help

  37. anonymous
    • one year ago
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    Can someone please help me?

  38. amistre64
    • one year ago
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    im not gone ...

  39. anonymous
    • one year ago
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    oh ok you werent viewing it tho

  40. anonymous
    • one year ago
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    Did you see the file i attached?

  41. amistre64
    • one year ago
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    the little notifs work so when you post i see it and come back. instead of waiting around for who knows how long. you choose B, why?

  42. amistre64
    • one year ago
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    assuming B means second that is, none of them are labeled

  43. anonymous
    • one year ago
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    yea idk why i put it... A dosent seem right

  44. amistre64
    • one year ago
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    when does IQR work best? when does deviation work best?

  45. anonymous
    • one year ago
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    well according to what you told me.. deviation is best when there are outliers

  46. amistre64
    • one year ago
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    deviation when there are NO outliers .. or rather a nice symmetric plot ^^^

  47. amistre64
    • one year ago
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    |dw:1433014800492:dw|

  48. anonymous
    • one year ago
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    ohhhh so A?

  49. amistre64
    • one year ago
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    I would pick A i this case, but just as an educated guess. again, i am no expert in this. just going by what i read.

  50. anonymous
    • one year ago
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    ok hopefully i get it right

  51. amistre64
    • one year ago
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    with any luck :)

  52. anonymous
    • one year ago
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    Can you help me with 2 more?

  53. amistre64
    • one year ago
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    no, ive got other things i need to attend to at the moment

  54. anonymous
    • one year ago
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    :( do you know anyone who could

  55. amistre64
    • one year ago
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    theres plenty but i dont know if they are around, post a new question and see who bites.

  56. anonymous
    • one year ago
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    ok thanks anyways heres your medal and fan.. I will essage you if the answers are correct

  57. amistre64
    • one year ago
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    good luck ;)

  58. amistre64
    • one year ago
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    message if they are wrong too, id like to know either way.

  59. anonymous
    • one year ago
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    Thank you bye

  60. anonymous
    • one year ago
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    ok

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