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Among all plants that reported a decline in electricity output, the one with the smallest decline is also the one with the smallest decline in operating hours.: False
The plant with the median electricity output is the same as the plant with the median number of operating hours.: True
Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe.: True
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
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Question Stats:
62% (02:42) correct
38%
(03:02)
wrong
based on 931
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The table below shows 2024 data for 15 major power plants. For each plant, the table lists the total electricity generated (in gigawatt-hours, GWh) and the total operating hours during the year, along with the percent change compared with 2023.
For each statement, select True if it can be verified to be true from the table, otherwise select False.
| Plant | Country | Region | Electricity (GWh) | % Change | Operating Hours | % Change |
|---|---|---|---|---|---|---|
| Asahi | Japan | East Asia | 96,200 | 1.8 | 7,940 | 0.5 |
| Evergreen | USA | North America | 81,000 | -1.1 | 7,720 | -0.6 |
| Dresden | Germany | Europe | 75,400 | -3.8 | 7,300 | -4.2 |
| Lingang | China | East Asia | 92,500 | 2.6 | 7,860 | 1.4 |
| Busan | South Korea | East Asia | 89,300 | 1.2 | 7,800 | 0.9 |
| Chennai | India | South Asia | 77,800 | 2.9 | 7,480 | 1.6 |
| Phoenix | USA | North America | 71,900 | -5.2 | 7,140 | -8.7 |
| Rotterdam | Netherlands | Europe | 79,600 | 0.7 | 7,550 | 0.4 |
| Tainan | Taiwan | East Asia | 86,000 | 1.5 | 7,720 | 1.1 |
| Berlin | Germany | Europe | 74,200 | -0.5 | 7,420 | -0.8 |
| Toronto | Canada | North America | 70,600 | 0.9 | 7,100 | -0.2 |
| Madrid | Spain | Europe | 73,400 | 1.0 | 7,260 | 0.3 |
| Paris | France | Europe | 80,200 | 1.3 | 7,500 | 0.9 |
| Sydney | Australia | Oceania | 68,900 | -2.5 | 6,990 | -1.1 |
| Kuala | Malaysia | Southeast Asia | 72,700 | 1.4 | 7,280 | 0.6 |
For each statement, select True if it can be verified to be true from the table, otherwise select False.
| True | False | |
| Among all plants that reported a decline in electricity output, the one with the smallest decline is also the one with the smallest decline in operating hours. | ||
| The plant with the median electricity output is the same as the plant with the median number of operating hours. | ||
| Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe. |
ShowHide Answer
Official Answer
Among all plants that reported a decline in electricity output, the one with the smallest decline is also the one with the smallest decline in operating hours.: False
The plant with the median electricity output is the same as the plant with the median number of operating hours.: True
Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe.: True
15 Oct 2025, 01:00
Kudos
Bookmarks
Bunuel
• Among all plants that reported a decline in electricity output, the one with the smallest decline is also the one with the smallest decline in operating hours.
Plants with electricity declines are Evergreen (−1.1%), Dresden (−3.8%), Phoenix (−5.2%), Berlin (−0.5%), and Sydney (−2.5%). The smallest decline in electricity output is for Berlin (−0.5%). Among these same plants, the smallest decline in operating hours is for Evergreen (−0.6%). Since these are different plants, the one with the smallest electricity decline is not the one with the smallest operating-hour decline.
Answer: False
• The plant with the median electricity output is the same as the plant with the median number of operating hours.
There are 15 plants, so the median is the 8th entry when sorted. By electricity output, the 8th plant is Chennai (77,800 GWh). By operating hours, the 8th plant is also Chennai (7,480 hours). Therefore, both medians correspond to the same plant.
Answer: True
• Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe.
Sort the table by percent change in electricity output from largest to smallest. Then, looking at the percent change in operating hours, consider only those with positive values. These are Asahi, Lingang, Busan, Chennai, Tainan, Rotterdam, Madrid, Paris, and Kuala — 9 plants in total. Among these, exactly 3 (Rotterdam, Madrid, and Paris) are located in Europe. Since 3 out of 9 equals one-third, the statement is correct.
Answer: True
I29-228
General Discussion
07 Oct 2025, 05:08
Kudos
Bookmarks
1. Among all plants that reported a decline in electricity output, the one with the smallest decline is also the one with the smallest decline in operating hours.
The smallest decline in electricity output among these plants is Berlin with -0.5%. For the smallest decline in operating hours, Toronto has the least, which is not the same plant as the smallest decline in electricity output (Berlin).
Therefore, the first statement is False.
2. The plant with the median electricity output is the same as the plant with the median number of operating hours.
Ordering plants by Electricity (GWh):
The median electricity output is the 8th value in the ordered list: 77,800 (Chennai).
Ordering plants by Operating Hours:
The median operating hours is the 8th value: 7,480 (Chennai).
Since the plant with the median electricity output (Chennai) is the same as the plant with the median operating hours, the second statement is True.
3. Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe.
Total plants with an increase in both metrics = 9
Plants located in Europe among these = Rotterdam, Madrid, Paris (3)
One-third of 9 = 3
This matches exactly, so the third statement is True.
The smallest decline in electricity output among these plants is Berlin with -0.5%. For the smallest decline in operating hours, Toronto has the least, which is not the same plant as the smallest decline in electricity output (Berlin).
Therefore, the first statement is False.
2. The plant with the median electricity output is the same as the plant with the median number of operating hours.
Ordering plants by Electricity (GWh):
The median electricity output is the 8th value in the ordered list: 77,800 (Chennai).
Ordering plants by Operating Hours:
The median operating hours is the 8th value: 7,480 (Chennai).
Since the plant with the median electricity output (Chennai) is the same as the plant with the median operating hours, the second statement is True.
3. Exactly one-third of the plants that showed an increase in both electricity output and operating hours are located in Europe.
Total plants with an increase in both metrics = 9
Plants located in Europe among these = Rotterdam, Madrid, Paris (3)
One-third of 9 = 3
This matches exactly, so the third statement is True.
DD
