Example of freq.distt.(dist.data.).ppt by ZubairLatif

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									               Example
      Suppose we walk in the nursery
 class of a school and we count the no.
 of Books and copies that students have
 in their bags.

Suppose the no. of books and copies are
3, 5, 7, 9 and so on.
 Representation of Data in a
Discrete Frequency Distribution
   X          Tally        Frequency
   3             |              1
   4            |||             3
   5         |||| ||||          9
   6       |||| |||| |||       13
   7         |||| ||||         10
   8            |||             3
   9           |||| |           6
 Total                         45
Relative Frequency Distribution
  X      Frequency     Relative/ %
                       Frequency
  3          1        1/45 x 100 = 2.22%


  4          3        3/45 x 100 = 6.67%

  5          9        9/45 x 100 = 20%

  6         13       13/45 x 100 = 28.89%

  7         10       10/45 x 100 = 22.22%

  8          3        3/45 x 100 = 6.67%

  9          6       6/45 x 100 = 13.33%

 Total      45
Cumulative Frequency Distribution
    X     Frequency   Cumulative
                      Frequency
    3         1            1

    4         3         1+3 = 4

    5         9         4+9 = 13

    6        13        13+13 = 26

    7        10        26+10 = 36

    8         3        36+3 = 39

    9         6        39+6 = 45

  Total      45

								
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