Sure, but one or more of the numbers would have to be negative.
In that case, even the mean could be zero.
Look at these numbers.
What's the mean ?
1, 2, 6, 4, 7, -20
Answer: The pattern is -1.25 and the full sequence of numbers are 18.5, 17.25, 16, 14.75, and 13.5.
The life expectancy would increase by 0.8 by 1995 to 2005 so a woman would be alive on average 81 years by 2005
Put the operation in order to explain you
