A researcher collects data and records it in four different frequency tables below. Which table corresponds to the data set with the greatest mean?
(5,4),(15,5),(25,6),(35,7)
(5,6),(15,5),(25,5),(35,6)
(5,5),(15,4),(25,6),(35,8)
(5,7),(15,3),(25,5),(35,7)
