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The following data shows the Class-marks of IQ TEST Score of a certain examination ; SCORE 70 74 78 82 86 90 94 Number of

The following data shows the Class-marks  of IQ TEST Score of a certain examination ;

     SCORE
    70
    74
    78
     82
     86
     90
      94
Number of   Users(Frequency)
   08
   13
   18
    27
     15
     10
     06

Find the following for given data

  • Arithmetic Mean.                                                       

Mean Deviation

Standard Deviation.

  • Variance

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