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Find Standard Deviation and Coefficient of Variation for Grouped Data
Type your data in either horizontal or verical format,
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for sample click random button

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X & Frequency   Class & Frequency
Rows :    
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  1. X01234
    Frequency151063
  2. X1011121314
    Frequency31218123
  3. Class2 - 44 - 66 - 88 - 10
    Frequency3421
  4. Class20 - 2525 - 3030 - 3535 - 4040 - 4545 - 50
    Frequency11017080454035
  5. X1.751.721.731.761.711.801.872.34
    Frequency32456271
  6. Class10 - 2020 - 3030 - 4040 - 5050 - 6060 - 7070 - 80
    Frequency15252012853
  7. X01234
    Frequency279752
  8. X01234
    Frequency179653
  9. Class-40 - -30-30 - -20-20 - -10-10 - 00 - 1010 - 2020 - 3030 - 40
    Frequency710102057231310
  10. Class0 - 22 - 44 - 66 - 88 - 1010 - 12
    Frequency51613754
  11. Class0 - 22 - 44 - 66 - 88 - 1010 - 12
    Frequency27121991
  12. Class15 - 2020 - 2525 - 3030 - 3535 - 4040 - 4545 - 5050 - 5555 - 60
    Frequency391420359622
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