STK 110 is introductory statistics — probability, distributions, and the foundational statistical reasoning that most degrees that require it assume students will just absorb quickly. Many don't, and that's normal, not a sign you're behind.
Statistics is one of those subjects where missing one core concept (a particular distribution, a particular type of test) makes everything built on top of it feel impossible — a tutor session is most useful for finding and fixing that one specific gap.
No dedicated STK 110 materials package exists yet — sessions are booked directly with a tutor and tailored to the specific section or upcoming test.