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MEAN_ MEDIAN_MODE

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					   MEAN,
MEDIAN,MODE
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       MEAN

The mean is the “average”
     To find the “mean’ or
 “average” find the sum of all
         the numbers.


Then divide by the number
        of numbers!
            EXAMPLE
• Find the mean of   • ADD
• the following      •
                     • 24+32+86+91+37
• numbers
                     • = 270

• 24,32,86,91,37     • DIVIDE
                     • 270/5 = 54
MEDIAN

  The median is the
   “middle” number
First, arrange the numbers
   in order from least to
          greatest.


    The median is the
  number in the middle.
What happens when there is
   an even number of
        numbers?

     45, 56, 67,68,79,98

 How many numbers are in the
      middle now????
When this happens, find the
average of the two numbers
       in the middle


       67 + 68 = 135

       135/2 = 67.5
        MODE


The mode is the number
that appears most often.
            Examples:
2, 3, 4, 5, 5, 6, 7, 8, 8, 8, 9, 11
         The mode is 8.
2, 3, 4, 5, 5, 5, 7, 8, 8, 8, 9, 11
    The modes are 5 and 8.
2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 17
       There is no mode.

				
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posted:4/6/2010
language:English
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