The co$-$owners of a new cafe have forecasted the demand for the first four weeks of operation. View the table below for a comparison between the co$-$owners' forecasts and the actual demand.

Co$-$Owners' Forecast True Demand

Week $1370245$

Week $2270260$

Week $3250375$

Week $4390400$

$3)$ Is the forecast of the co$-$owners biased? Why or why not?