The equation of the least-squares regression line is hat y is equal to 16 point 5 plus 8 point 5 1 x , where hat y is the bill for the dinner and x is number of people in the party. Which shows the residual plot?
Answer
A
Image with description A dot plot with the x axis titled People begins with 0 and ends at 12 with equal intervals of 2, such as 0, 2, 4, 6, 8, 10, and 12. The y axis titled Residual begins with negative 20 and ends at 30 with equal intervals of 10, such as negative 20, negative 10, 0, 10, 20, 30. A horizontal line parallel to the x axis starts from the point where y is 0. There is a dot at approximately 1, negative 18; a dot at 2, negative 1; a dot at 2, 9; a dot at 3, negative 12; a dot at 3, 9; a dot at 4, negative 1; a dot at 5, 5; a dot at 5, 25; a dot at 6, negative 8; and a dot at 10, negative 9.
B
Image with description A dot plot with the x axis titled People begins with 0 and ends at 12 with equal intervals of 2, such as 0, 2, 4, 6, 8, 10, and 12. The y axis titled Residual begins with negative 60 and ends at 40 with equal intervals of 20, such as negative 60, negative 40, negative 20, 0, 20, and 40. A horizontal line parallel to the x axis starts from the point where y is 0. There is a dot at approximately 1, 38; a dot at 2, 5; a dot at 2, 15; a dot at 3, negative 5; a dot at 3, 15; a dot at 4, negative 1; a dot at 5, negative 19; a dot at 5, negative 40; a dot at 6, negative 15; and a dot at 10, negative 45.
C
Image with description A dot plot with the x axis titled People begins with 0 and ends at 12 with equal intervals of 2, such as 0, 2, 4, 6, 8, 10, and 12. The y axis titled Residual begins with negative 30 and ends at 20 with equal intervals of 10, such as negative 30, negative 20, negative 10, 0, 10, and 20. A horizontal line parallel to the x axis starts from the point where y is 0. There is a dot at approximately 1, 18; a dot at 2, 1; a dot at 2, negative 9; a dot at 3, 12; a dot at 3, negative 9; a dot at 4, 1; a dot at 5, negative 5; a dot at 5, negative 25; a dot at 6, 8; and a dot at 10, 9.
D
Image with description A dot plot with the x axis titled People begins with 0 and ends at 12 with equal intervals of 2, such as 0, 2, 4, 6, 8, 10, and 12. The y axis titled Residual begins with negative 40 and ends at 60 with equal intervals of 20, such as negative 40, negative 20, 0, 20, 40, and 60. A horizontal line parallel to the x axis starts from the point where y is 0. There is a dot at approximately 1, negative 38; a dot at 2, 1; a dot at 2, negative 10; a dot at 3, 5; a dot at 3, negative 18; a dot at 4, 1; a dot at 5, 19; a dot at 5, 40; a dot at 6, 18; and a dot at 10, 45.