Micah is a financial analyst looking to find how a company's stock price is related to its stock prices for each of the previous four trading days. What is the correct format for a multiple regression equation?

Select the correct answer below:

hat$(y)=b_1{x}_1+b_2{x}_2+b_3{x}_3$

hat$(y)=b_0+b_1{x}_1+b_2{x}_2+b_3{x}_3$

widehat$(y)=b_0+b_1{x}_1+b_2{x}_2+b_3{x}_3+b_4{x}_4$

widehat$(y)=b_0+b_1{x}_1+b_2{x}_2+b_3{x}_3+b_4{x}_4+b_5{x}_5$