6. Applied Methods and Capstones

Data Analysis — Quiz

Test your understanding of data analysis with 5 practice questions.

Practice Questions

Question 1

Which scikit-learn class implements cross-validation preserving temporal ordering for time series data?

Question 2

In preprocessing time-series data with outliers, which scaler uses the median and interquartile range to reduce outlier influence?

Question 3

For imputing missing values in an energy time series while preserving smoothness and slope continuity, which interpolation method is most appropriate?

Question 4

Why apply principal component analysis (PCA) before clustering daily energy load profiles?

Question 5

When using the median absolute deviation (MAD) method to detect outliers with median = 100 and MAD = 10, and threshold defined as $100 \pm 3 \times 10$, which of the following values is considered a high outlier?