The formula for the chi-squared statistic is A)Σ[(O-E)²/E] B)[Σ(O-E)²]/E C)O/[Σ(O-E)²] D)E/[Σ(O-E)²]

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The chi-squared statistic is calculated by summing the squared differences between the observed and expected frequencies, divided by the expected frequencies. The formula for the chi-squared statistic is:χ² = Σ[(O-E)²/E]where:O is the observed frequencyE is the expected frequency

The Formula for the Chi-Squared Statistic Is