If a temperature sensor is supposed to increase its output by $1$ degree for every $1-$

degree rise in temperature but actually only increases by $0\mathrm{.}9$ degrees, the sensitivity

error will affect all measurements in a predictable way $($e$.$g$.,$ consistently

underestimating temperature$).$ This predictable and consistent nature makes it a

$\_\_\_\_\_\_\_\_\_\_\_\_$error.$(1$pt$)$