MATHS

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  • Created by: AHyde
  • Created on: 26-04-15 08:06
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  • mean/median/mode/range
    • MO =MOST COMMON
    • MED = MIDDLE VALUE
    • MEAN = AVERAGE BUT IT'S MEAN AS YOU HAVE TO WORK IT OUT!
    • RANGE = HOW FAR FROM SMALLEST TO BIGGEST
    • GOLDEN RULE FOR ALL - ALWAYS REARRANGE IN ASCENDING ORDER
    • FOR EG: FIND MEAN MEDIAN MODE AND RANGE OF THESE NUMBERS: - 6,-1,5,-5,0,2,8,8,-7,9,6,8 (12)
      • 1.  FIRST REARRANGE THEM - -7,-5,-1,+0+2+5+6+6+8+8+8+9 (12).
        • 2.  MEAN = TOTAL AND DIVIDE THE TOTAL BY NUMBER OF NUMBERS.  I.E. 39/12=3.25
          • MEDIAN= FIND THE MIDDLE VALUE (ONLY WHEN ARRANGED IN ORDER OF SIZE)
            • MODE= MOST COMMON VALUE =8
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Comments

shahadot

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good and easy