Python Prowess

Which of the following statistical measures provides information about the central tendency of a dataset?

• Median

• Variance

• Interquartile range

• Standard deviation

Which of the following visualization techniques is commonly used to explore the relationship between two continuous variables?

• Box plot

• bar chart

• Histogram

• Scatter plot

What does the term "outlier" typically refer to in data exploration?

• The average value of a dataset.

• The standard deviation of a dataset.

• A data point that lies within the main cluster of the dataset.

• A data point that is significantly different from other observations in the dataset.

Which of the following best describes a decision tree?

• A linear model used for regression analysis.

• A clustering algorithm for grouping similar data points.

• A graphical representation of decision-making based on probabilities.

• A hierarchical structure composed of nodes and branches, representing decisions and outcomes.

What distinguishes Random Forest from a single Decision Tree?

• Random Forest applies a different splitting criterion.

• Random Forest uses a gradient boosting technique.

• Random Forest requires fewer computational resources.

• Random Forest combines the predictions of multiple decision trees.

___________  is the process of transforming raw data into features that are suitable for machine learning algorithms.

• Transfer

• Feature design

• Transfer design

• Feature engineering

What is the reason for overfitting or underfitting?

• Loss is high

• Accuracy is low

• Training data is not cleaned

• Model capacity is too small or too big

A good fit (optimization) for a model can be defined as  __________

• line or curve overfit the data

• line or curve underfit the data

• line or curve that best fit the data

• using a random mathematical function to represent the model