This web page is for error corrections and other changes to the slides and homeworks.
- Slides 24–26, Deck 7 have been simplified because Mathematica has gotten better since they were first done.
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In the homework 9 assignment, the last two words of the first sentence of
problem 9-10 should have been
random variables
(it saidrandom vectors
, which was wrong). Now fixed in both the assignment and solution (Nov. 19, 2014). -
Slide 139, Deck 5. Deleted the word
conditionally
from the line below the first displayed equation (the quantity in the first displayed equation is independent ofX 2). (Fixed Nov. 19, 2014.) Slide 140, Deck 5. Added missing part of the argument just below the displayed equations on this slide (rest of paragraph after the equations). (Fixed Nov. 19, 2014.) - Slide 39, Deck 6. The equation at the bottom was missing an X on the right-hand side. (Fixed Nov. 11, 2014.)
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Midterm 1 solutions. In the originally posted solutions for problem 4,
parts (e) and (f) the support was wrong.
The correct support for part (e) is
{ (x, y, z) ∈ S3 : x + y + z ≠ 0 },
and the correct support for part (f) is
{ (x, y, z) ∈ S3 : x + y + z ≠ 0 and x ≤ y ≤ z }.Both now fixed.
- Homework 4 solutions. In the originally posted solution for problem 4-7 part (a), the table giving the mapping (x1, x2) → (x1, x1 + x2) had some wrong entries. Now fixed.