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californiagurl9 Group Title

How do you work out the median for a stem and leaf diagram?

  • one year ago
  • one year ago

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  1. Lukecrayonz Group Title
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    Plot your points, i will show an example for you.

    • one year ago
  2. Lukecrayonz Group Title
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    |dw:1352949208556:dw|

    • one year ago
  3. Lukecrayonz Group Title
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    |dw:1352949256216:dw|

    • one year ago
  4. Lukecrayonz Group Title
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    |dw:1352949266843:dw|

    • one year ago
  5. Lukecrayonz Group Title
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    6+7=13 13/2=6.5 Your median is 6.5

    • one year ago
  6. californiagurl9 Group Title
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    I don't really understand this...

    • one year ago
  7. Lukecrayonz Group Title
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    Okay, i'll explain more:)

    • one year ago
  8. Lukecrayonz Group Title
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    |dw:1352949405372:dw|

    • one year ago
  9. Lukecrayonz Group Title
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    A stem and leaf plot shows the number on the left representing the place number of the right digit. I.E, in the graph above, you have column 0. You have the numbers 03, 06, 09. For column 1, you have 12, 15, 16, 19. For column 2, you have 21, 23.

    • one year ago
  10. Lukecrayonz Group Title
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    The median is the middle number.

    • one year ago
  11. Lukecrayonz Group Title
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    So, write the numbers. 3, 6, 9, 12, 15, 16, 19, 21, 23.

    • one year ago
  12. Lukecrayonz Group Title
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    Cross off a number on the left, then on the right, counting towards the middle until you have one number left.

    • one year ago
  13. Lukecrayonz Group Title
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    |dw:1352949551338:dw|

    • one year ago
  14. Lukecrayonz Group Title
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    |dw:1352949584040:dw| I crossed out each pair with different symbols to represent that they are crossed out together.

    • one year ago
  15. Lukecrayonz Group Title
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    Your median, is 15. It is the middle number.

    • one year ago
  16. californiagurl9 Group Title
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    Thank you! I understand now :)

    • one year ago
  17. californiagurl9 Group Title
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    wait one more thing...if there are a lot of digits in the leaf column, does this process still apply the same way?

    • one year ago
  18. Lukecrayonz Group Title
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    Yes! Exactly the same.

    • one year ago
  19. californiagurl9 Group Title
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    Okay thank you so much!

    • one year ago
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