Science, Maths & Technology
Averages
...children each of us has are 0, 2, 4 and 2. The mean number of children per person is the number we’d each have if they were divided out evenly between the four of us. In total there are 8 children, so the mean number is 8 divided by 4 - which is, of course, 2. What happens if a new colleague joins us, and the new colleague has 3 children? Well, now the total number of...