Class $1$: $5\mathrm{.}3,4\mathrm{.}9,5\mathrm{.}2,5\mathrm{.}4,5\mathrm{.}6,5\mathrm{.}1,5\mathrm{.}8,5\mathrm{.}3,4\mathrm{.}9,6\mathrm{.}1,6\mathrm{.}2,5\mathrm{.}7,5\mathrm{.}4,6\mathrm{.}9,4\mathrm{.}3,5\mathrm{.}2,5\mathrm{.}6,5\mathrm{.}9,5\mathrm{.}3,5\mathrm{.}8$

Class $2$: $4\mathrm{.}7,5\mathrm{.}0,5\mathrm{.}5,4\mathrm{.}1,6\mathrm{.}8,5\mathrm{.}0,4\mathrm{.}7,5\mathrm{.}6,4\mathrm{.}9,6\mathrm{.}3,7\mathrm{.}8,3\mathrm{.}6,8\mathrm{.}4,5\mathrm{.}4,4\mathrm{.}7,4\mathrm{.}4,5\mathrm{.}6,3\mathrm{.}7,6\mathrm{.}2,7\mathrm{.}5$

a$)$ How are the classes alike, and how are they different?

b$)$ How would you approach instruction for the classes? Is this approach the same or different for each class based on your analysis?