If you are finding the year a certain number of years from a previous one (e.g. 4000 years from the current year, 2010) then a negative value indicates time BCE (as opposed to CE). Some people prefer to call these BC and AD.
z-score of a value=(that value minus the mean)/(standard deviation). So if a value has a negative z-score, then it is below the mean.
Negative z value means that the raw dat is below the mean, if z value is positive it means that the raw data is above the mean.
A positive value is a value that is greater than zero. A negative value is a value that is less than zero.
A negative z score is a value that is less than the mean value.
Non-negative means either zero or positive.
The value is a negative number.
The z value corresponding to a number below the mean is Negative.
Yes.
It means a number less than zero.
Yes. If a score is below the mean, the z score will be negative.
No. The standard deviation is not exactly a value but rather how far a score deviates from the mean.
That you are loosing value on the investment at that rate per year.