| Date | November 2020 | Marks available | 1 | Reference code | 20N.1.SL.tz0.27 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | What | Question number | 27 | Adapted from | N/A |
Question
What does standard deviation represent?
A. Deviation of negative values from a mean
B. Deviation of positive values from a mean
C. Spread of the variability of data around a mean
D. Statistical significance of variation around a mean
Markscheme
C
Examiners report
Easy question.
Syllabus sections
- 16N.1.SL.tz0.27: What is the mean of these three javelin throws? Throw 1: 40 metres; Throw 2: 53 metres;...
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18N.1.HL:.tz0.24:
Which is the mean value for the post-training test score?
A. 13
B. 15
C. 16
D. 17
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19M.2.SL.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
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19M.2.SL.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
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19M.2.HL:.tz0.1a:
Identify the time and condition with the highest mean sprint speed.
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19M.2.HL:.tz0.1b:
Calculate the difference in mean sprint speed, in m s–1, between baseline and at 4 minutes for the plyometric condition.
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19M.2.SL.tz0.1c:
Using the data, discuss the hypothesis that plyometric exercise can improve sprint performance.
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21M.1.SL.tz0.27:
An athlete completed five timed trials of a 20 m sprint test. What is the mean time?
A. 3.90 s
B. 3.95 s
C. 4.00 s
D. 4.05 s
- 21N.2.SL.tz0.1d: Identify the sport with the smallest standard deviation for eccentric rate of force development.
