| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.SL.TZ0.2 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 2 | Adapted from | N/A |
Question
Aiming for the centre of a target, an archer fires arrows which produces a pattern of hits as shown below.
The pattern suggests the presence of
A. random and systematic uncertainties.
B. random uncertainties but no systematic uncertainties.
C. systematic uncertainties but no random uncertainties.
D. neither random nor systematic uncertainties.
Markscheme
A
Examiners report
Option C was more popular than the correct response A. Candidates failed to recognize that the spread shown indicated that there were random errors in addition to the clear systematic error.
Syllabus sections
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