A mark on a graph or chart corresponding to a piece of data.
I think the third data point is inaccurate. Let's measure it again.
The datum that the mark represents.
A socket for connecting to a phone line or other electronic network.
A fixed reference point or set of reference points which precisely define a system of measurement or a coordinate system.
A premise from which conclusions are drawn.
A floating reference point, or SLDMB, used to evaluate surface currents in a body of water. Often employed by coastal search and rescue.
A fact known from direct observation.
To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device.