Linear algebra II, week 4

Here are some brief remarks on the questions. For the question on the determinant of it is probably best to write at once so that by the multiplicativity of the determinant. Then and are immediate, by induction on and , for example, using a column expansion. [A word on induction: I'm sure you can see [...]

Yet more remarks on Probability A, sheet 1

I am adding yet more remarks on sheet 1 of Probability A, this time on question 6.

Probability, more remarks

I am adding now some comments on problem 5 of the probability sheet 1.

Probability tutorials, week 3

Here are some remarks on the probability tutorials last week. I didn’t have time to comment on any but the most elementary problems, but I thought it might be good to review the basics anyways. I’ll try to write more this weekend.