The problem with this approach is that errors in estimating turns tend to pile up.

Those errors tend to fall where there are changes affecting numbers of people.

Further, this research reveals that "errors" in yield management decisions tend to be quite systematic.

When they made mistakes, those errors tended to be dramatic.

Stochastic errors tend to be gaussian, or normal, in their distribution.

Thus, original omission or error tends to extend to the higher planes.

Without such a means of combining predictions, errors tend to multiply.

However, errors in bearing and range tend to make this approach fairly inaccurate.

Since errors tend to accumulate, older manuscripts should have fewer errors.

The error tends to disappear in perceptions of one's own group.