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Listening Quiz: Cố Vấn Cho Một Nhà Phân Tích Dữ Liệu Cấp Thấp – Medium Level
Th9 17, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà khoa học dữ liệu (English for Data Scientist)
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1.
What is the main focus of Sarah and Kevin’s conversation?
Discussing how to manage a data team
Choosing between Python and R for a project
Planning a software purchase for the office
Learning the basics of statistical models
Explanation:
Sarah is mentoring Kevin on statistical models, including types, uses, and evaluation methods.
2.
According to Sarah, what does linear regression predict?
A category such as yes or no
Whether a model is accurate
The best software tool to use
A number based on data
Explanation:
Sarah says linear regression predicts a number based on data.
3.
Which two model types does Sarah tell Kevin to start with?
Decision trees and clustering
Python and R
R-squared and accuracy
Linear regression and logistic regression
Explanation:
Sarah specifically tells Kevin to start with linear regression and logistic regression.
4.
What metrics does Sarah recommend for checking whether a model is good?
Python and R
R-squared and accuracy
Speed and cost
Yes and no
Explanation:
Sarah says to use metrics like R-squared and accuracy.
5.
How does Kevin likely feel at the end of the conversation?
More confident about the topic
Confused and frustrated
Certain he no longer needs help
Uninterested in statistics
Explanation:
Kevin says, ‘I feel more confident now,’ which shows he feels more confident after Sarah’s explanation.
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