Just like we went from a single to a double integral, we can add another dimension to create a triple integral. One (hard-to-visualize) interpretation of a triple integral is the hyper-volume of a 4-dimensional region. We can interpret triple integrals in other ways depending on the context of the problem. 1. Compute the probability P(Y > X). And draw a graph showing how we get the bounds. Note: the answer fpr P(Y>X) is 7/27