Suppose a mathematics class with 30 students is given an examination and the raw  scores are shown below. Make a frequency distribution and find the: Range Mean Median Mode Variance Standard Deviation Average Deviation and Quartile Deviation   Note:  Use  i = 10                                                   48        73        57        50        78        47                                                 79        70        45        65        38        59                                                 30        59        60        55        65        68                                                 32        49        71        35        66        58                                                 32        36        68        59        59        50

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Author:Amos Gilat
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 Suppose a mathematics class with 30 students is given an examination and the raw  scores are shown below. Make a frequency distribution and find the:

  1. Range
  2. Mean
  3. Median
  4. Mode
  5. Variance
  6. Standard Deviation
  7. Average Deviation and
  8. Quartile Deviation

 

Note:  Use  i = 10

 

                                                48        73        57        50        78        47

                                                79        70        45        65        38        59

                                                30        59        60        55        65        68

                                                32        49        71        35        66        58

                                                32        36        68        59        59        50

 

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