Public task directory

Technical interview practice tasks

Every entry below is a crawlable link to a unique public task page. This directory complements the interactive filters and keeps the complete catalog connected through standard pagination.

Page 94 of 386 · 18,491 tasks

Knowledge Check · Easy · 1 min

What is the main purpose of Bucket feature in ds feature engineering

What is the main purpose of Bucket feature in ds feature engineering?

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Knowledge Check · Easy · 1 min

What is the main purpose of Text feature in ds feature engineering

What is the main purpose of Text feature in ds feature engineering?

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Knowledge Check · Easy · 1 min

What is the main purpose of Interaction in ds feature engineering

What is the main purpose of Interaction in ds feature engineering?

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Knowledge Check · Hard · 1 min

While reviewing ds feature engineering, demand depends on last week sales. Which action fixes it, and which check proves it worked

While reviewing ds feature engineering, demand depends on last week sales. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds feature engineering, age effects are strongly nonlinear. Which action fixes it, and which check proves it worked

While reviewing ds feature engineering, age effects are strongly nonlinear. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds feature engineering, support tickets need topic classification. Which action fixes it, and which check proves it worked

While reviewing ds feature engineering, support tickets need topic classification. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds feature engineering, promotion impact differs by region. Which action fixes it, and which check proves it worked

While reviewing ds feature engineering, promotion impact differs by region. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing ds feature engineering, demand depends on last week sales. Which action best addresses the problem

While reviewing ds feature engineering, demand depends on last week sales. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds feature engineering, age effects are strongly nonlinear. Which action best addresses the problem

While reviewing ds feature engineering, age effects are strongly nonlinear. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds feature engineering, support tickets need topic classification. Which action best addresses the problem

While reviewing ds feature engineering, support tickets need topic classification. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds feature engineering, promotion impact differs by region. Which action best addresses the problem

While reviewing ds feature engineering, promotion impact differs by region. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Null hypothesis in ds hypothesis testing

What is the main purpose of Null hypothesis in ds hypothesis testing?

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Knowledge Check · Easy · 1 min

What is the main purpose of P-value in ds hypothesis testing

What is the main purpose of P-value in ds hypothesis testing?

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Knowledge Check · Easy · 1 min

What is the main purpose of Type one error in ds hypothesis testing

What is the main purpose of Type one error in ds hypothesis testing?

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Knowledge Check · Easy · 1 min

What is the main purpose of Type two error in ds hypothesis testing

What is the main purpose of Type two error in ds hypothesis testing?

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Knowledge Check · Hard · 1 min

While reviewing ds hypothesis testing, a trial asks whether treatment changes conversion. Which action fixes it, and which check proves it worked

While reviewing ds hypothesis testing, a trial asks whether treatment changes conversion. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds hypothesis testing, a result reports p equals 0.03. Which action fixes it, and which check proves it worked

While reviewing ds hypothesis testing, a result reports p equals 0.03. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds hypothesis testing, many unchanged variants may appear significant. Which action fixes it, and which check proves it worked

While reviewing ds hypothesis testing, many unchanged variants may appear significant. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds hypothesis testing, a small sample misses a useful effect. Which action fixes it, and which check proves it worked

While reviewing ds hypothesis testing, a small sample misses a useful effect. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing ds hypothesis testing, a trial asks whether treatment changes conversion. Which action best addresses the problem

While reviewing ds hypothesis testing, a trial asks whether treatment changes conversion. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds hypothesis testing, a result reports p equals 0.03. Which action best addresses the problem

While reviewing ds hypothesis testing, a result reports p equals 0.03. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds hypothesis testing, many unchanged variants may appear significant. Which action best addresses the problem

While reviewing ds hypothesis testing, many unchanged variants may appear significant. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds hypothesis testing, a small sample misses a useful effect. Which action best addresses the problem

While reviewing ds hypothesis testing, a small sample misses a useful effect. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Distribution shift in ds model limitations

What is the main purpose of Distribution shift in ds model limitations?

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Knowledge Check · Easy · 1 min

What is the main purpose of Extrapolation in ds model limitations

What is the main purpose of Extrapolation in ds model limitations?

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Knowledge Check · Easy · 1 min

What is the main purpose of Proxy feature in ds model limitations

What is the main purpose of Proxy feature in ds model limitations?

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Knowledge Check · Easy · 1 min

What is the main purpose of Uncertainty in ds model limitations

What is the main purpose of Uncertainty in ds model limitations?

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Knowledge Check · Hard · 1 min

While reviewing ds model limitations, a model moves to a new country. Which action fixes it, and which check proves it worked

While reviewing ds model limitations, a model moves to a new country. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model limitations, a model prices values beyond training range. Which action fixes it, and which check proves it worked

While reviewing ds model limitations, a model prices values beyond training range. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model limitations, postal code closely identifies ethnicity. Which action fixes it, and which check proves it worked

While reviewing ds model limitations, postal code closely identifies ethnicity. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model limitations, a point forecast is treated as certain. Which action fixes it, and which check proves it worked

While reviewing ds model limitations, a point forecast is treated as certain. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing ds model limitations, a model moves to a new country. Which action best addresses the problem

While reviewing ds model limitations, a model moves to a new country. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model limitations, a model prices values beyond training range. Which action best addresses the problem

While reviewing ds model limitations, a model prices values beyond training range. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model limitations, postal code closely identifies ethnicity. Which action best addresses the problem

While reviewing ds model limitations, postal code closely identifies ethnicity. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model limitations, a point forecast is treated as certain. Which action best addresses the problem

While reviewing ds model limitations, a point forecast is treated as certain. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Log loss in ds model metrics

What is the main purpose of Log loss in ds model metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of Mean absolute error in ds model metrics

What is the main purpose of Mean absolute error in ds model metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of Root mean square error in ds model metrics

What is the main purpose of Root mean square error in ds model metrics?

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Knowledge Check · Easy · 1 min

What is the main purpose of Business metric in ds model metrics

What is the main purpose of Business metric in ds model metrics?

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Knowledge Check · Hard · 1 min

While reviewing ds model metrics, a model outputs calibrated class probabilities. Which action fixes it, and which check proves it worked

While reviewing ds model metrics, a model outputs calibrated class probabilities. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model metrics, delivery-time errors need interpretable units. Which action fixes it, and which check proves it worked

While reviewing ds model metrics, delivery-time errors need interpretable units. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model metrics, large forecast misses are especially costly. Which action fixes it, and which check proves it worked

While reviewing ds model metrics, large forecast misses are especially costly. Which action fixes it, and which check proves it worked?

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Knowledge Check · Hard · 1 min

While reviewing ds model metrics, offline AUC rises without better outcomes. Which action fixes it, and which check proves it worked

While reviewing ds model metrics, offline AUC rises without better outcomes. Which action fixes it, and which check proves it worked?

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Knowledge Check · Medium · 1 min

While reviewing ds model metrics, a model outputs calibrated class probabilities. Which action best addresses the problem

While reviewing ds model metrics, a model outputs calibrated class probabilities. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model metrics, delivery-time errors need interpretable units. Which action best addresses the problem

While reviewing ds model metrics, delivery-time errors need interpretable units. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model metrics, large forecast misses are especially costly. Which action best addresses the problem

While reviewing ds model metrics, large forecast misses are especially costly. Which action best addresses the problem?

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Knowledge Check · Medium · 1 min

While reviewing ds model metrics, offline AUC rises without better outcomes. Which action best addresses the problem

While reviewing ds model metrics, offline AUC rises without better outcomes. Which action best addresses the problem?

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Knowledge Check · Easy · 1 min

What is the main purpose of Family-wise error in ds multiple testing

What is the main purpose of Family-wise error in ds multiple testing?

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