Can I substitute other courses for Stat 110 or Stat 111 in the secondary field requirements?

Stat 210a can be substituted for Stat 110, and Stat 211a can be substituted for Stat 111 (these are the PhD-level analogs, and are taught at a much higher mathematical level than Stat 110 and 111). Aside from these, no substitutions for Stat 110 or 111 are allowed.