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Expected Count in a Two-Way Table
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In a two-way table with 3 rows and 2 columns, the row totals are 50, 30, and 20, while the column totals are 60 and 40. If the chi-square test for independence has 2 degrees of freedom, what is the expected count for the cell in the second row and first column?

A

18

B

12

C

30

D

15

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