Typo in list of formulas

I have been made aware of two typos in the list of formulas:

• In 2b in the list there is a typo in the formula for the conditional distribution of Y₁ given Y₂=y₂ . In the expression for the conditional mean, the first minus sign should be changed to a plus sign; cf. page 81 in the text book. 
• In 3e the symbol w_i should be replaced by ω_i (twice).