I am in marketing now but I studies Mechanical engineering for my undergrad and then went to business school.
My short answer is.. study WHATEVER you want and you can still get a job in any field! Thats's the truth. With that said, if you want to make the path more linear, then I would recommend the following:
Any business or marketing majors, statistics, and/or advertising.
For UX design:
User research, design, engineering , product development, and/or <span style="color: rgb(93, 103, 106);">Phycology. </span>
Also, please remember you can always Major is WHATEVER subject you enjoy/love/passionate about and the Minor in the field you believe you want to apply the subject you love in. For example: You love <span style="color: rgb(93, 103, 106);">Phycology but you </span>think you want to pursue <span style="color: rgb(93, 103, 106);">a career in UX or Marketing, then I would recommend you Major in Phycology and Minor in Business or marketing or design..etc</span>
<span style="color: rgb(93, 103, 106);">Best of luck!</span>