Table 4 B. b1 b2 b3 a1 20 30 a2 40 10 What is the proper thing to do if your frequency table looks like Table 4? Compute chi-squared as usual. Compute chi-squared using 0 as the expected count in each row of column 3. Eliminate column b3 altogether. There is no proper way to do compute chi-squared in this case. Compute chi-squared using the inversion formula.

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