Question

The mean of monthly salary of 13 employees of a firm is Rs. 15,000. If one person resign from the firm who gets Rs. 21,000 per month, than what will be the mean monthly salary now?

plz can u send me the answer fast​

Answer 1

Answer:

Step-by-step explanation:

Mean = Sum of all observations / No: of observations

.. Sum of all observations

observations × Mean

No: of observations = 12 Mean 1450

Sum of all observations = 12 x 1450 = 17400

If one more person is added, No: of observations = 13 Sum of all observation=17400 + 1600 = 19000

→ New mean = Sum of all observations / No: of observations

= 19000 13 = 1461.53846

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Answer 2

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Given, the mean of monthly salary of the 13 employees of a firm is 15000

Total salary of the 13 employees = 13*15000 = 195000

Now, one person resigns from the firm.

So, total salary of the 12 employees = 195000 - 21000 = 174000

The mean of monthly salary of the 12 employees = 174000/12 = 145000

Step-by-step explanation:

hope it helps you