As others have said, I think that Lancaster is probably the place she's looking for.
Although, just as @poetryandwine mentioned above, there are other similar courses that she may wish to consider as well. As well as Data Science another which your DD might wish to consider is MORSE (Maths, Operational Research, Statistics & Economics) with a year in industry.
https://www.lancaster.ac.uk/study/undergraduate/courses/mathematics-operational-research-statistics-and-economics-morse-industry-bsc-hons-gln1/2025/
Although the university gives assistance in finding a placement, getting one is not guaranteed. Indeed, they say:
"If you are unsuccessful in securing a suitable placement for your third year, you will be able to transfer to the equivalent non-placement degree scheme and would continue with your studies at Lancaster, finishing your degree after your third year. The University offers a range of shorter placement and internship opportunities for which you would be welcome to apply."
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And just to throw in a bit of a curve ball, how about Warwick?
Warwick is very highly rated indeed when it comes to Maths & Statistics, MORSE and Data Science (I would argue, more highly rated than Lancaster but that's besides the point)
You can also do a year in industry with any of these courses. They don't have specific courses with a placement year, but on any of these courses they say:
"You may additionally choose to spend an intercalated year in an approved industry, business or university between your last two years at Warwick, subject to availability and to satisfactory academic performance."
Warwick generally asks for higher grades though. Although if she takes the STEP (Sixth Term Exam Paper) or TMUA (Test of Mathematics for University Admission) and gets a reasonable grade then they offer a lower A*AA for those taking Maths and Further Maths.