$$Caf$$ 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

$$$$2\mathrm{.}60$

$$$$3\mathrm{.}40$

$$$$1\mathrm{.}90$

$$$$4\mathrm{.}20$

$$$$3\mathrm{.}20$

$$$$4\mathrm{.}10$

Part $2$

Using simple linear regressionLOADING... and given that the price per cup is $$$$,$ the forecasted demand for mocha latte coffees will be

$$

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