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The following 3x2 contingency table below shows experiences of abdominal pain with three treatments. Using the table calculate the expected frequency for the highlighted cell

The following 3x2 contingency table below shows experiences of abdominal pain with three treatments. Using the table calculate the expected frequency for the highlighted cell (those who received the placebo and did not experience abdominal pain):

Treatment 1 Treatment 2 TOTAL Experienced 51 5 72 abdominal pain Did not 1847 expenence abdominal pain TOTAL 1919

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