**"Two dice are rolled. Let the random variable X denote the sum of the two numbers obtained. Construct the probability histogram for the random variable X.**" I understand how to do probability histograms, with the probabilities on the vertical axis and the values along the horizontal axis, but I"m not sure what the values and probabilities would be in this case? All I've been able to come up with is that if you roll 2 dice, the total number of possible outcomes would be 6x6= 36. I'm not sure where to go from there?