Data Preparation and Visualization - Machine Learning Quiz

1. What is the primary purpose of data visualization?

To store data efficiently

To represent data graphically for easier understanding

To clean and preprocess data

To perform statistical analysis

2. Which of the following is a common tool used for data visualization?

Matplotlib

NumPy

Pandas

Scikit-learn

3. What does data scaling aim to achieve?

To increase the size of the dataset

To normalize data to a specific range

To reduce the dimensionality of data

To remove outliers from the dataset

4. Which scaling technique transforms data to have a mean of 0 and a standard deviation of 1?

Min-Max Scaling

Standardization (Z-score normalization)

Robust Scaling

Log Transformation

5. In which scenario is Min-Max Scaling particularly useful?

When the data has outliers

When the data follows a normal distribution

When the algorithm assumes data is within a specific range

When the data has a large number of zero values

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Quiz 2: Data Preparation and Visualization