Question: if x is to be chosen at random from the integers between 1 to 7 , inclusive , and y is to be chosen at random from the integers between 7 and 11 , inclusive , what is the probability that x + y will be even ?
A) 3 / 5
B) 4 / 7
C) 5 / 7
D) 18 / 35
E) 23 / 35
Correct answer: D
Grade: 7 | Topic: Statistics and Probability | Difficulty: Hard | Standard: 7.SP.C.7