Question

A researcher randomly surveys people with a medical condition about whether they received a treatment and whether their condition improved. The result

Two-way tables
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asked 2021-06-23
A researcher randomly surveys people with a medical condition about whether they received a treatment and whether their condition improved. The results are shown. Make a two-way table that includes the marginal frequencies. Treatment Improved: 34 Did not improve: 10 Not Treatment Improved: 12 Did not improve: 29

Expert Answers (1)

2021-06-24

Based on the given information, the following two-way table is obtained.

\(\begin{array}{|c|c|}\hline & \text{Tes} & \text{No} & \text{Total} \\ \hline \text{Improved} & 34 & 12 & 46 \\ \hline \text{Condition} \\ \hline \text{Did not improve} & 10 & 29 & 39 \\ \hline \text{Total} & 44 & 41 & 85 \\ \hline \end{array}\)

The marginal frequencies are derived by summing the entries corresponding to rows and columns.

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