display job title and average salary of employees.
SELECT job_title ,  AVG(salary) FROM employees AS T1 JOIN jobs AS T2 ON T1.job_id  =  T2.job_id GROUP BY T2.job_title
SELECT job_title ,  AVG(salary) FROM employees AS T1 JOIN jobs AS T2 ON T1.job_id  =  T2.job_id GROUP BY T2.job_title
[{'JOB_TITLE': 'Accountant', 'AVG(salary)': 7920.0}, {'JOB_TITLE': 'Accounting Manager', 'AVG(salary)': 12000.0}, {'JOB_TITLE': 'Administration Assistant', 'AVG(salary)': 4400.0}, {'JOB_TITLE': 'Administration Vice President', 'AVG(salary)': 17000.0}, {'JOB_TITLE': 'Finance Manager', 'AVG(salary)': 12000.0}, {'JOB_TITLE': 'Human Resources Representative', 'AVG(salary)': 6500.0}, {'JOB_TITLE': 'Marketing Manager', 'AVG(salary)': 13000.0}, {'JOB_TITLE': 'Marketing Representative', 'AVG(salary)': 6000.0}, {'JOB_TITLE': 'President', 'AVG(salary)': 24000.0}, {'JOB_TITLE': 'Programmer', 'AVG(salary)': 5760.0}, {'JOB_TITLE': 'Public Accountant', 'AVG(salary)': 8300.0}, {'JOB_TITLE': 'Public Relations Representative', 'AVG(salary)': 10000.0}, {'JOB_TITLE': 'Purchasing Clerk', 'AVG(salary)': 2780.0}, {'JOB_TITLE': 'Purchasing Manager', 'AVG(salary)': 11000.0}, {'JOB_TITLE': 'Sales Manager', 'AVG(salary)': 12200.0}, {'JOB_TITLE': 'Sales Representative', 'AVG(salary)': 8350.0}, {'JOB_TITLE': 'Shipping Clerk', 'AVG(salary)': 3215.0}, {'JOB_TITLE': 'Stock Clerk', 'AVG(salary)': 2785.0}, {'JOB_TITLE': 'Stock Manager', 'AVG(salary)': 7280.0}]