That's a common error.
human error.........
A combination of trial & error and thousands of years of evolution.
There are two common formula errors. One error is that the formula is read wrong. The other error is that the formula is written down incorrectly.
Human error?
It is a common typographic error for formula.
"Quark hunting" in relation to animals refers to the act of hunting for the Eurasian wild pig known as the wild boar. It is a popular outdoor recreational activity in some countries where hunting wild boars is permitted.
human error
chemical
Greatest common error
Variance, standard deviation and standard error are the most common but there are also mean absolute error, standardised error range inter-quartile range The use of "error" does not mean that anything is wrong - the expression simply means difference from the expected value.
This is error display system , when you modem is not install or configure properly