Hello, I was curious how to find the probability that a random number generated in one normal curve will be greater than a random number generated in a second normal curve.

For example, if you have a curve with m=1, st dev = 0.5 and a second curve with m=2, st dev = 1, what is the probability that a random number from the first curve will be greater than a random number from the second curve?

Thank you for your help.