[E] Master's Guidance

Hello,

I will be starting a master's in Statistical Data Science at TAMU this fall and have some questions about direction for the future:

I did my undergrad in chemical engineering but it's been three years since I've done graduated and done serious math. What should I review prior to the start of the program?

What should I focus on doing during the program to maximize job prospects? I will also be simultaneously slowly chipping away at an online master's in CS part time.

Thanks!