Statement Is the statement true or false?

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PISA 2012 items for release ENGLISH

Translation Note: Gentoo - Pygoscelis papua / Rockhopper - Eudyptes chrysocome / Magellanic - Spheniscus magellanicus
“histogram” in ENG or “histogramme” in FRE that are less common and more difficult for 15-year olds. UNIT PENGUINS SCORING 4
Full Credit Code 1: Four correct responses: True, True, False, True in that order. No Credit

Statement
Is the statement true or false?
In 2000, the average number of chicks raised
per penguin couple was larger than 0.6.
True / False
In 2006, on average, less than 80% of penguin
couples raised a chick.
True / False
By about 2015 these three penguin types will be
extinct.
True / False
The average number of Magellanic penguin
chicks raised per penguin couple decreased
between 2001 and 2004.
True / False
Translation Note: Gentoo - Pygoscelis papua / Rockhopper - Eudyptes chrysocome /
Magellanic - Spheniscus magellanicus
Translation Note: Please translate “bar chart” with the term most commonly used in 15-
year olds’ mathematics classes. Avoid using more formal expressions such as
“histogram” in ENG or “histogramme” in FRE that are less common and more difficult
for 15-year olds.
UNIT PENGUINS SCORING 4
QUESTION INTENT:
Description: Analyse different statements concerning a given bar chart
Mathematical content area: Uncertainty and data
Context: Scientific
Process: Interpret
Full Credit
Code 1: Four correct responses: True, True, False, True in that order.
No Credit
Code 0: Other responses.
Code 9: Missing.

PISA 2012 Released Items
POWER OF THE WIND
Zedtown is considering building some wind power
stations to produce electricity.
The Zedtown Council gathered information about the
following model.
Model:
E-82
Height of tower:
138 metres
Number of rotor blades:
3
Length of one rotor blade:
40 metres
Maximum speed of rotation:
20 rotations per minute
Price for construction:
3 200 000 zeds
Turnover:
0.10 zeds per kWh generated
Maintenance cost:
0.01 zeds per kWh generated
Efficiency:
Operational 97% of the year
Note: kilowatt hours (kWh) is a measure of electrical energy.

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