10.3.1 Calculate Arithmetic Mean or Mean, Median, Mode, Geometric Mean, Harmonic Mean from Ungrouped/Grouped Data

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<math><menclose is called notation="top"><mi>X</mi></menclose><mo>=</mo><mfrac><mrow><msub><mi>x</mi><mn>1</mn></msub><mo>+</mo><msub><mi>x</mi><mn>2</mn></msub><mo>+</mo><msub><mi>x</mi><mn>3</mn></msub><mo>+</mo><mo>.</mo><mo>.</mo><mo>.</mo><mo>&#xA0;</mo><mo>+</mo><msub><mi>x</mi><mi>n</mi></msub></mrow><mi>n</mi></mfrac></math>

  mean value of <math><msub><mi>x</mi><mn>1</mn></msub><mo>+</mo><msub><mi>x</mi><mn>2</mn></msub><mo>+</mo><msub><mi>x</mi><mn>3</mn></msub><mo>+</mo><mo>.</mo><mo>.</mo><mo>.</mo><mo>&#xA0;</mo><mo>+</mo><msub><mi>x</mi><mi>n</mi></msub></math>
  arithmetic mean
  geometric mean
  weighted mean