The real numbers are infinite, and probabilities involving continuous functions on the reals make sense; it's just that P(X=c) = 0 for all constants c, and you

The real numbers are infinite, and probabilities involving continuous functions on the reals make sense; it's just that P(X=c) = 0 for all constants c, and you have to integrate the probability density function to obtain probabilities. See http://en.wikipedia.org/wiki/Continuous_probability_distribution http://en.wikipedia.org/wiki/Continuous_probability_distribu...