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Result Brand-name Generic Placebo Improvement 16 29 13 No change 12 20 44 Calculate the marginal frequencies and sample size. Find the expected frequency for

Result Brand-name Generic Placebo Improvement 16 29 13 No change 12 20 44

Calculate the marginal frequencies and sample size.

Find the expected frequency for each cell in the contingency table.

Assume that the variables are independent.

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