| Date | November 2008 | Marks available | 2 | Reference code | 08N.1.sl.TZ0.9 |
| Level | SL only | Paper | 1 | Time zone | TZ0 |
| Command term | Find | Question number | 9 | Adapted from | N/A |
Question
The Venn diagram shows the numbers of pupils in a school according to whether they study the sciences Physics (\(P\)), Chemistry (\(C\)), Biology (\(B\)).
Write down the number of pupils that study Chemistry only.
Write down the number of pupils that study exactly two sciences.
Write down the number of pupils that do not study Physics.
Find \(n[(P \cup B) \cap C]\) .
Markscheme
\(9\) (A1) (C1)
[1 mark]
\(12\) (A1) (C1)
[1 mark]
\(8 + 3 + 9 + 6\) (M1)
\( = 26\) (A1) (C2)
Note: Award (A1) for \(20\) seen if answer is incorrect.
[2 marks]
\(5 + 2 + 3\) (M1)
\( = 10\) (A1) (C2)
Note: Award (A1) for \(29\) or \(19\) seen if answer is incorrect.
[2 marks]
Examiners report
This question was well attempted by the majority. The major error was the omission of the “\(6\)” in the candidates’ calculations. Perhaps better positioning would have helped in this regard.
This question was well attempted by the majority. The major error was the omission of the “\(6\)” in the candidates’ calculations. Perhaps better positioning would have helped in this regard.
This question was well attempted by the majority. The major error was the omission of the “\(6\)” in the candidates’ calculations. Perhaps better positioning would have helped in this regard.
This question was well attempted by the majority. The major error was the omission of the “\(6\)” in the candidates’ calculations. Perhaps better positioning would have helped in this regard.
