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Listening Quiz: Bàn Về Một Bất Thường Thống Kê Trong Bộ Dữ Liệu – Advanced Level
Th11 19, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà nghiên cứu học thuật (English for Academic Researcher)
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5
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1.
What are Mark and Anna mainly discussing?
A disagreement about the source files
A schedule for publishing a research paper
A new marketing plan for the company
A sudden jump in the dataset and how to handle it
Explanation:
They discuss a sudden jump in the values at point 45, whether it is a real anomaly, and how it affects the analysis.
2.
At which point does Mark notice the sudden jump in values?
Point 30
Point 45
Point 15
Point 60
Explanation:
Mark says, ‘There is a sudden jump in the values at point 45.’
3.
By about how much does the anomaly change the final analysis?
It raises the mean by about 5 percent
It lowers the mean by about 5 percent
It does not affect the mean at all
It doubles the mean
Explanation:
Mark says the anomaly ‘raises the mean by about 5 percent.’
4.
What can be inferred about Anna’s attitude toward the issue?
She believes the source files are unreliable
She does not care about accuracy
She wants to confirm the data before publishing
She thinks the anomaly should be ignored
Explanation:
Anna agrees they should check for other anomalies and says they should be sure before publishing, showing she wants to confirm the data first.
5.
What will Mark do next?
Rewrite the source files
Ask Anna to enter the data again
Run a full data integrity check today
Publish the analysis immediately
Explanation:
Mark says, ‘I will run a full data integrity check today.’
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