My Sql Statement Select Avg(salary) From Emp Yields Inaccurate Result

1.	My Sql Statement Select Avg(salary) From Emp Yields Inaccurate Results. Why?
Answer» Because SALARY is not declared to have NULLS and the EMPLOYEES for whom the salary is not known are ALSO counted. Because SALARY is not declared to have NULLs and the employees for whom the salary is not known are also counted.

My Sql Statement Select Avg(salary) From Emp Yields Inaccurate Results. Why?

Answer»

Because SALARY is not declared to have NULLS and the EMPLOYEES for whom the salary is not known are ALSO counted.

Because SALARY is not declared to have NULLs and the employees for whom the salary is not known are also counted.