$4$Question $4,$ Problem$4\mathrm{.}43$bcdPart $1$ of $5$HW Score: $20\mathrm{.}33\%,4\mathrm{.}07$ of $20$ points Points: $0$ of $2$SaveMark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon $5$ during the previous month. Gershon has collected the data shown in the following table:Maroon $5$ TV AppearancesDemand for Guitars$423766669977$This exercise contains only parts b$.$ c$,$ and db$)$ Using the least$-$squares regression method, the equation for forecasting is $($round your responses to four decimal places:Video Get more help $-$Clear all