Given the contingency table shown here, what is the probability that a mother in the study smoked during pregnancy? Smoked during Didn't Smoke Mother's Education Pregnancy during Pregnancy Row Total Below High School High School Some College 393 640 1,033 560 1,370 1,930 121 635 756 College Degree 48 550 598 Col Total 1,122 3,190 4,317 Multiple Cholce 0.7401 0.3174 0.2591 0.5000

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**Contingency Table Analysis**

This data represents a study on smoking behavior during pregnancy, categorized by the mother's education level.

**Contingency Table:**

| Mother's Education  | Smoked during Pregnancy | Didn't Smoke during Pregnancy | Row Total |
|--------------------|--------------------------|------------------------------|-----------|
| Below High School  | 393                      | 640                          | 1,033     |
| High School        | 568                      | 1,370                        | 1,938     |
| Some College       | 121                      | 635                          | 756       |
| College Degree     | 48                       | 559                          | 598       |
| **Col Total**         | **1,122**               | **3,190**                    | **4,317** |

**Question:**
What is the probability that a mother in the study smoked during pregnancy?

- **Total number of mothers who smoked during pregnancy:** 1,122
- **Total number of mothers in the study:** 4,317

**Probability Calculation:**
\[ P(\text{Smoked during Pregnancy}) = \frac{1,122}{4,317} \]

**Multiple Choice Options:**

- 0.07401
- 0.3174
- 0.2599
- 0.5000

**Conclusion:**
The correct calculation for the probability is obtained by dividing the number of mothers who smoked during pregnancy by the total number of mothers in the study.
Transcribed Image Text:**Contingency Table Analysis** This data represents a study on smoking behavior during pregnancy, categorized by the mother's education level. **Contingency Table:** | Mother's Education | Smoked during Pregnancy | Didn't Smoke during Pregnancy | Row Total | |--------------------|--------------------------|------------------------------|-----------| | Below High School | 393 | 640 | 1,033 | | High School | 568 | 1,370 | 1,938 | | Some College | 121 | 635 | 756 | | College Degree | 48 | 559 | 598 | | **Col Total** | **1,122** | **3,190** | **4,317** | **Question:** What is the probability that a mother in the study smoked during pregnancy? - **Total number of mothers who smoked during pregnancy:** 1,122 - **Total number of mothers in the study:** 4,317 **Probability Calculation:** \[ P(\text{Smoked during Pregnancy}) = \frac{1,122}{4,317} \] **Multiple Choice Options:** - 0.07401 - 0.3174 - 0.2599 - 0.5000 **Conclusion:** The correct calculation for the probability is obtained by dividing the number of mothers who smoked during pregnancy by the total number of mothers in the study.
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