We know that
• There are 14 employees with a salary of $21,400.
,
• 12 employees with a salary of $23,700.
,
• 17 employees with a salary of $26,100.
,
• 2 employees with a salary of $31,700.
,
• 5 employees with a salary of $39,700.
,
• 1 employee with a salary of $148,900.
To find the mean, we have to sum all the salaries first.
Then, we divide the sum by the total number of employees.
Hence, the mean is $5,715.67, approximately.