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anonymous

  • one year ago

Will give medal! The following histograms show the average number of hours two groups of students spend cycling every week:

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Which statement best compares the median number of hours that the two groups of students spend cycling every week? Median is between 4 and 5 hours for both groups. Median is between 5 and 6 hours for both groups. Median for group A is significantly less than the median for group B. Median for group A is significantly greater than the median for group B.

  3. anonymous
    • one year ago
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    @Hero

  4. anonymous
    • one year ago
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    @amistre64

  5. anonymous
    • one year ago
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    @jagr2713

  6. amistre64
    • one year ago
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    what is your work?

  7. anonymous
    • one year ago
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    well I've found the median for both groups.

  8. anonymous
    • one year ago
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    for group one its between 1-2 and 6-7 which is 2 and for group 2 its between 6-7 and 7-8 which is 1

  9. amistre64
    • one year ago
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    im still pondering on how to appraoch the median, i have an idea ... how did you approach it?

  10. anonymous
    • one year ago
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    well I used the groups of numbers for the hours in order of the number of students.

  11. amistre64
    • one year ago
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    would you say that there are 21 students in each group?

  12. anonymous
    • one year ago
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  13. anonymous
    • one year ago
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    yes

  14. amistre64
    • one year ago
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    21/2 = 10.xxx so we want the 11th value in each case, right?

  15. anonymous
    • one year ago
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    yes

  16. amistre64
    • one year ago
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    start from the left, and count up and then over and up until we get to the 11th position what is our values for each case?

  17. anonymous
    • one year ago
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    what do you mean by case?

  18. amistre64
    • one year ago
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    group A, group B .. each is a case ...

  19. anonymous
    • one year ago
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    ah ok

  20. anonymous
    • one year ago
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    1'm confused

  21. anonymous
    • one year ago
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    what am 1 supposed to be doing?

  22. anonymous
    • one year ago
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    sorry 1'm really bad at math

  23. amistre64
    • one year ago
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    counting of course ..

  24. amistre64
    • one year ago
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    where does 11 fall? 2+8+1, gets us in the third bar 3+8 , gets us in the second bar

  25. anonymous
    • one year ago
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    still confused

  26. anonymous
    • one year ago
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    what did you get for the median?

  27. amistre64
    • one year ago
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    4.5

  28. anonymous
    • one year ago
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    okay how?

  29. amistre64
    • one year ago
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    A 1.5 1 1.5 2 3.5 3 3.5 4 3.5 5 3.5 6 3.5 7 3.5 8 3.5 9 3.5 0 4.5 1 <<<<< 4.5 0 4.5 9 4.5 8 4.5 7 5.5 6 5.5 5 5.5 4 5.5 3 6.5 2 6.5 1 B 3.5 1 3.5 2 3.5 3 4.5 4 4.5 5 4.5 6 4.5 7 4.5 8 4.5 9 4.5 0 4.5 1 <<<<< 4.5 0 5.5 9 5.5 8 5.5 7 5.5 6 5.5 5 5.5 4 5.5 3 6.5 2 7.5 1

  30. anonymous
    • one year ago
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    where did all the decimals come from?

  31. amistre64
    • one year ago
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    we know 21/2 = 10.xxx so we want the 11th value, the one in the middle so we count the decimals are just halfway points so we know where were at instead of saying 4-5 we just have 4.5

  32. anonymous
    • one year ago
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    ah 1 get i now

  33. anonymous
    • one year ago
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    so it would be A?

  34. amistre64
    • one year ago
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    yeah, A is fine for me

  35. anonymous
    • one year ago
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    Thanks!

  36. amistre64
    • one year ago
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    yw

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