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Which of the following SQL statements correctly finds the average salary per d...

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Which of the following SQL statements correctly finds the average salary per department_id?

SELECT Department_id, AVG(Salary) FROM Employees GROUP BY Department_id;

100%

SELECT Department_id, Salary FROM Employees GROUP BY Department_id;

0%

SELECT Department_id, AVG(Salary) FROM Employees;

0%

SELECT AVG(Salary) GROUP BY Department_id FROM Employees;

0%

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