Caf Michigan's 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 1 $2.60 760 2 $3.60 515 3 $2.00 980 4 $4.30 250 5 $3.20 320

Using

simple linear regression

and given that the price per cup is

$1.75, the forecasted demand for mocha latte coffees will be

enter your response here cups (enter your response rounded to one decimal place).