Trans_id 101 102 103 104 105 106 107 108 109 110 Items_purchased milk, bread, eggs milk, juice juice, butter milk, bread, eggs coffee, eggs coffee coffee, juice milk, bread, cookies, eggs cookies, butter milk, bread

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Show two rules that have a confidence of 0.7 or greater for an itemset containing three items using the following table in the picture.

**Transaction Data Analysis**

Below is a table illustrating a series of transactions and the items purchased during each transaction. This data can be utilized for understanding customer buying patterns, inventory management, and sales analysis.

| Trans_id | Items_purchased                  |
|----------|----------------------------------|
| 101      | milk, bread, eggs                |
| 102      | milk, juice                      |
| 103      | juice, butter                    |
| 104      | milk, bread, eggs                |
| 105      | coffee, eggs                     |
| 106      | coffee                           |
| 107      | coffee, juice                    |
| 108      | milk, bread, cookies, eggs       |
| 109      | cookies, butter                  |
| 110      | milk, bread                      |

### Analysis:

- **Frequent Items:** Milk, bread, and eggs appear multiple times across different transactions.
- **Popular Combinations:**
  - Milk and bread are often purchased together.
  - Coffee appears frequently, both alone and with other items like eggs and juice.
- **Unique Items:** Butter and cookies appear less frequently, indicating potential for targeted promotions.

This data can be useful for creating targeted marketing campaigns or managing stock levels to meet customer demands effectively.
Transcribed Image Text:**Transaction Data Analysis** Below is a table illustrating a series of transactions and the items purchased during each transaction. This data can be utilized for understanding customer buying patterns, inventory management, and sales analysis. | Trans_id | Items_purchased | |----------|----------------------------------| | 101 | milk, bread, eggs | | 102 | milk, juice | | 103 | juice, butter | | 104 | milk, bread, eggs | | 105 | coffee, eggs | | 106 | coffee | | 107 | coffee, juice | | 108 | milk, bread, cookies, eggs | | 109 | cookies, butter | | 110 | milk, bread | ### Analysis: - **Frequent Items:** Milk, bread, and eggs appear multiple times across different transactions. - **Popular Combinations:** - Milk and bread are often purchased together. - Coffee appears frequently, both alone and with other items like eggs and juice. - **Unique Items:** Butter and cookies appear less frequently, indicating potential for targeted promotions. This data can be useful for creating targeted marketing campaigns or managing stock levels to meet customer demands effectively.
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