Question: A pair of dice is loaded. The probability that a 4 appears on the first die is 2/7, and the probability that a 3 appears

A pair of dice is loaded. The probability that a 4 appears on the first die is 2/7, and the probability that a 3 appears on the second die is 2/7. Other outcomes for each die appear with probability 1/7. What is the probability of 7 appearing as the sum of the numbers when the two dice are rolled?

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