Question

98. Last year a small statistical consulting company paid each of its five statistical clerks Rs. 22.000
two statistical analysts Rs. 50.000 each, and the senior statistician/owner Rs270.000. The number
of employees earning less than the mean solory is:
a o b. 4 c. 6
d.7​

Answer 1

Step-by-step explanation:

Last year a small statistical consulting company paid each of its five statistical clerks $22,000, two statistical analysts $50,000 each, and the senior statistician/owner $270,000. The number of employees earning less than the mean salary is

D. 7

Answer 2

Given,

Pay for 5 statistical clerks $\[ = 22000Rs.\]$

Pay for two statistical analysts $\[ = 50000Rs.\]$

Pay to senior statistician/ owner $\[ = 270000Rs.\]$

Solution,

Total number of employees,

$\[\begin{array}{l} = 5 + 2 + 1\\ = 8\end{array}\]$

Total salary paid by company,

$\[\begin{array}{l} = 5 \times 22000 + 2 \times 50000 + 270000\\ = 480000Rs.\end{array}\]$

Average of salary,

$\[\begin{array}{l} = \frac{{480000}}{8}\\ = 60000\end{array}\]$

Here average salary is $\[60000Rs.\]$ There are 5 statistical clerks, 2 statistical analysts whose salary is less than average salary.

Hence number of employees earning less than the mean salary is 7.

The correct option is (d), i.e. 7.