Chapter 8.1, Problem 5MP

Under the conditions in Example 5, find the probabilities of the following events (each event refers to the sum of the dots facing up on both dice):

(A) $E_5=\text{a}\text{sum}\text{of}5\text{turns}\text{up}\text{.}$

(B) $E_6=$ a sum that is a prime number greater than $7$ turns up.