It caused increasingly larger errors on the high side.
If potential density surfaces are used, the difference can be hundreds of meters, a far larger error.
Results based on smaller sub-groups have a larger potential error.
A small error in the beginning can lead to a large error at the end.
However, regardless how small the average error becomes, large errors within the guidance are still possible.
"What looks like a small difference may in truth be a large error," she said.
Ironically for a show intended to teach science, the episode has two large errors.
It is where errors, large and small, are corrected.
But the agency said there was a margin for error large enough to swing the results to a loss.
At worst, it could not be a large error.