Now that the official scoring standards have been released, I have had the opportunity to compare them to my answers that I originally released in May 2007. I got everything right! I would make the following very, very minor changes;

Q1: I guessed the points for part e would be 3, they were actually 2.

Q2: I guessed the points for part c would be 2, they were actually 3.

Q3: I guessed the points for part d would be 1, they were actually 2, and I would change my answer to 340 to reflect a “better” number of sig figs.

Q4: No changes.

Q5: I guessed the points for part d would be 3, they were actually 4, and I guessed the points for part e would be 2, they were actually 1.

Q6: I guessed the points for part f would be 2, they were actually 1.

Adjustments will be reflected in subscriber areas in due course.