Take 3470:461 Applied Statistics in place of 3470:401 Probability and Statistics for Engineers and
take the option that includes 3450:222 Calculus II. Then the following courses are required:
3450:223 Calculus III
3460:209 Computer Science I 
3450:307 Fundamentals of Advanced Mathematics
3450:312 Linear Algebra
3450:335 Ordinary Differential Equations
3450:421 Advanced Calculus I
3450:427 Applied Numerical Methods I
3450:428 Applied Numerical Methods II
3450:436 Mathematical Models
One of 3450:425 Complex Variables or 3450:422 Advanced Calculus II

Total: 34 Additional Credits

Minor: You should take either 3470:461 Applied Statistics or 3470:460 Statistical Methods
to complete the statistics option. Then you need
3450:223 Calculus III
3450:312 Linear Algebra
and two additional approved electives in mathematics, statistics or computer science.