Original post by WraggyI would like to ditto TheTallOne: the department doesn't expect statements to be exactly tailored to MORSE because there are few comparable courses. However statistics is quite a dominant element, and pure maths less so, so mentioning that might be favourable.
Just to slightly correct TheTallOne, MORSE students can entirely avoid maths modules after first year! And many do. My last maths module was Analysis III in second year, which was an option. However you can choose to do more maths, if you look at the course regs linked in the previous post you can work out how many maths modules you can take. In the 3rd year of the MORSE course you can take plenty of maths, in the previous years you will be limited because of the core stats, OR and econ modules. There are a few common modules with straight maths in first year, and also some watered down versions of maths modules (for example Maths Methods a second year stats modules is a basis introduction to metric spaces and more complicated calculus, for stats students). If you ask a maths student, they will say MORSE is "softer", but a MORSE student will probably tell you that their modules are more useful outside the academic world.
I don't think I can particularly compare how maths and MORSE are regarded by employers, but if you are interested in going into IB, actuarial work, economics, consultancy etc. MORSE is very well positioned for any of those careers.