High Temperature (°F) | Number of cans sold |
55 | 340 |
58 | 335 |
64 | 410 |
68 | 460 |
70 | 450 |
75 | 610 |
80 | 735 |
84 | 780 |
1. A convenience store manager notices thatsales of soft drinks are higher on hotter days, so he assembles thedata in the table.
(a) Make a scatter plot of the data below.
(b) Sketch the best fit line and write the equation for thatline.
Equation:______________________________________
(c) Use the model to predict soft-drink sales if the temperature is95°F.
(d) Using the scatterplot, describe the association you seebetween the two variables. Guess your r, (Remember r is not thesame as slope!) Make sure to mention direction and strength.
graph
