Democrat Republican Total 37 31 68 College Degree No College Degree 63 69 132 Total 100 100 200

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D,E,F,G

### Educational Content on Probability and Statistics

#### Table Analysis

The table presents data regarding the distribution of college degrees among Democrats and Republicans:

|                     | Democrat | Republican | Total |
|---------------------|----------|------------|-------|
| College Degree      | 37       | 31         | 68    |
| No College Degree   | 63       | 69         | 132   |
| **Total**           | **100**  | **100**    | **200**|

#### Questions

(a) **What is the probability a randomly selected participant has a college degree?**

(b) **What is the probability that a randomly selected participant is a democrat?**

(c) **What is the probability that a randomly selected participant is a democrat and has a college degree?**

(d) **Of those who have college degrees, what is the probability of being a democrat?**

(e) **What is the probability of being a democrat or having a college degree?**

(f) **Are having a college degree and being a democrat disjoint events?**

(g) **Are having a college degree and being a democrat independent events?**

#### Explanation

- **Probability Calculations**: Use the given data in the table to calculate probabilities for different scenarios.
- **Disjoint Events**: Two events are disjoint if they cannot occur at the same time.
- **Independent Events**: Two events are independent if the occurrence of one event does not affect the probability of the other.

This content is designed to help students understand the basic concepts of probability and how to apply them to real-world scenarios through the use of data analysis.
Transcribed Image Text:### Educational Content on Probability and Statistics #### Table Analysis The table presents data regarding the distribution of college degrees among Democrats and Republicans: | | Democrat | Republican | Total | |---------------------|----------|------------|-------| | College Degree | 37 | 31 | 68 | | No College Degree | 63 | 69 | 132 | | **Total** | **100** | **100** | **200**| #### Questions (a) **What is the probability a randomly selected participant has a college degree?** (b) **What is the probability that a randomly selected participant is a democrat?** (c) **What is the probability that a randomly selected participant is a democrat and has a college degree?** (d) **Of those who have college degrees, what is the probability of being a democrat?** (e) **What is the probability of being a democrat or having a college degree?** (f) **Are having a college degree and being a democrat disjoint events?** (g) **Are having a college degree and being a democrat independent events?** #### Explanation - **Probability Calculations**: Use the given data in the table to calculate probabilities for different scenarios. - **Disjoint Events**: Two events are disjoint if they cannot occur at the same time. - **Independent Events**: Two events are independent if the occurrence of one event does not affect the probability of the other. This content is designed to help students understand the basic concepts of probability and how to apply them to real-world scenarios through the use of data analysis.
Expert Solution
Step 1

Given data:

The 2×2 cross tabulation is provided as:

  Democrat Republican Total
College Degree 37 31 68
No College Degree 63 69 132
Total 100 100 200

Total number of participants, N = 200.

Number of participants who have college degree, x = 68.

Number of democrats, d = 100

Number of democrats who have college degree, z = 37.

Let X be an event that a randomly selected participant has a college degree.

Let D be an event that a randomly selected participant is a democrat.

 

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