10.3.1 Calculate Arithmetic Mean or Mean, Median, Mode, Geometric Mean, Harmonic Mean from Ungrouped/Grouped Data
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<math><mi>H</mi><mo>=</mo><mfrac><mi>n</mi><mrow><mo>∑</mo><mo>(</mo><mstyle is called displaystyle="true"><mfrac><mn>1</mn><mi>x</mi></mfrac></mstyle><mo>)</mo></mrow></mfrac></math>
