The mean age of 6 women in an office is 31 years old. The mean age of 4 men in an office is 29 years old. What is the mean age (nearest year) of all the people in the office?
1 Answer
May 9, 2017
30.2
Explanation:
The mean is calculated by taking the sum of the values and dividing by the count.
For instance, for the 6 women, with the mean being 31, we can see that the ages summed to 186:
And we can do the same for the men:
And now we can combine the sum and count of the men and women to find the mean for the office:
