How to Calculate the Probability of a Curve

In order to amass a certain amount of probability, we usually have to frame an interval associated with it. If i give you a specific point and say, how much area under the curve does the number 14 point two occupy? That's very hard to talk about that probablistically. We can apply that same principle to taking these individual likelihoods, but for a set of observations. Compute the individual likelihoods,. And if they are independent, we can take the product of those likelihoods  and get an overall value that represents the likelihood for the set of observes.