Question 1197596
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Obviously the question as posted can't be answered, because there is no information about what numbers are on the faces of each die....<br>
Assuming the numbers are the whole numbers from 1 to n for a die with n faces, the expected value for any roll on each die is (1+n)/2.<br>
Then the expected value on a roll of the 7-sided die is (1+7)/2 = 4 and the expected value on a roll of the 9-sided die is (1+9)/2 = 5; so the expected value of the sum of one roll on each die is 4+5 = 9.<br>
ANSWER: 9<br>