Grokking SQL for Tech Interviews
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2. Student Course Averages (Easy)
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Problem Statement

Table: Students
Each row in this table represents a student enrolled in courses, providing their unique ID and name.

+---------------+---------+
| Column Name   | Type    | 
+---------------+---------+
| student_id    | int     | 
| student_name  | varchar |
+---------------+---------+
student_id serves as the primary key for this table.

Table: Courses
Contains details about the courses offered in the school, including the name of each course.

+--------------+---------+
| Column Name  | Type    |
+--------------+---------+

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