Caf Michigans manager, Gary Stark, suspects that demand for mocha latte coffees depends on the price being charged. Based on historical observations, Gary has gathered the following data, which show the numbers of these coffees sold over six different price values:

Price	Number Sold
$2.70	760
$3.50	510
$2.00	980
$4.20	250
$3.10	320
$4.05	480

a. Using these data, how many mocha latte coffees would be forecast to be sold according to simple linear regression if the price per cup were $2.80? 677

b. What is the MAD?

c. What is the Coefficient of Determination? and what does that tell you? [ Select ] ["Cannot determine based on the data given", "in this case, how much can be determined by the regression line", "That there is a weak relationship", "There is no correlation in this problem", "How strong the relationship is between X and Y"]