anonymous
  • anonymous
How do you work out the median for a stem and leaf diagram?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Lukecrayonz
  • Lukecrayonz
Plot your points, i will show an example for you.
Lukecrayonz
  • Lukecrayonz
|dw:1352949208556:dw|
Lukecrayonz
  • Lukecrayonz
|dw:1352949256216:dw|

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Lukecrayonz
  • Lukecrayonz
|dw:1352949266843:dw|
Lukecrayonz
  • Lukecrayonz
6+7=13 13/2=6.5 Your median is 6.5
anonymous
  • anonymous
I don't really understand this...
Lukecrayonz
  • Lukecrayonz
Okay, i'll explain more:)
Lukecrayonz
  • Lukecrayonz
|dw:1352949405372:dw|
Lukecrayonz
  • Lukecrayonz
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.
Lukecrayonz
  • Lukecrayonz
The median is the middle number.
Lukecrayonz
  • Lukecrayonz
So, write the numbers. 3, 6, 9, 12, 15, 16, 19, 21, 23.
Lukecrayonz
  • Lukecrayonz
Cross off a number on the left, then on the right, counting towards the middle until you have one number left.
Lukecrayonz
  • Lukecrayonz
|dw:1352949551338:dw|
Lukecrayonz
  • Lukecrayonz
|dw:1352949584040:dw| I crossed out each pair with different symbols to represent that they are crossed out together.
Lukecrayonz
  • Lukecrayonz
Your median, is 15. It is the middle number.
anonymous
  • anonymous
Thank you! I understand now :)
anonymous
  • anonymous
wait one more thing...if there are a lot of digits in the leaf column, does this process still apply the same way?
Lukecrayonz
  • Lukecrayonz
Yes! Exactly the same.
anonymous
  • anonymous
Okay thank you so much!

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