String Theory - Determinate or Indeterminate?

lmerriam

A fundamental difference between classical and quantum mechanics is that the former is deterministic; the latter, probabilistic. I'm wondering where string theory fits into this picture? Is the landscape described by string theory determinate or indeterminate?
Along the same lines, classical and quantum randomness are fundamentally different: the outcome of the former, e.g. a coin toss, is potentially predictable (given sufficient information), while the latter, e.g. when a single radioactive particle will undergo decay, is utterly unpredictable -- not just in practice, but in principle. Does the concept of randomness even enter into the formalism of string theory? And, if so, how? TIA