The mean cost for Anne per year for her sparkle is 398.67$
Explanation:
Proceeding step by step
Annual preventive maintenance cost for the sparkle= 760$
Cost for changing the Brake pads= 120$
Cost of starter replacement= 316$
Since all of these replacements was done is the first three years
Hence Total replacement cost for 3 years=
Tc= 760+120+316
Tc= 1196$
Where Tc= total replacement cost
Since this cost is incurred by Anne in 3 year
Hence mean cost=1196/3
= 398.6666$
The mean cost for Anne per year for her sparkle is= 398.67$(rounded off to two decimal places)
