RND(number)

This function returns a random number between 0 and 1.  The number parameter is usually set to 1, but the value is unimportant because it is not actually used by the functoin.  The function will always return an arbitrary number between 0 and 1.

RANDOMIZE n

This function seeds the random number generator in a predictable way.  The seed numbers must be greater than 0 and less than 1.  Numbers such as 0.01 and 0.95 are used with RANDOMIZE