Practice Free PCED-30-01 Exam Online Questions
Which of the following libraries in Python can be used for creating interactive visualizations?
- A . matplotlib
- B . Seaborn
- C . Plotly
- D . Pandas
When evaluating a classification model, which metric can be used to assess the balance between precision and recall?
- A . Accuracy
- B . F1 score
- C . Mean squared error
- D . R-squared
Which of the following techniques can be used in data pre-processing for feature selection?
- A . Principal Component Analysis (PCA)
- B . Support Vector Machines (SVM)
- C . k-Nearest Neighbors (k-NN)
- D . Linear Regression
Which of the following libraries in Python is commonly used for data visualization?
- A . numpy
- B . pandas
- C . matplotlib
- D . scikit-learn
Which machine learning algorithm is commonly used for clustering in data modeling?
- A . Decision tree
- B . K-means
- C . Linear regression
- D . Random forest
Which type of visualization is best suited for comparing the distribution of a numerical variable across different categories?
- A . Scatter plot
- B . Box plot
- C . Line chart
- D . Histogram
Which of the following tools can be used for interactive data visualization on the web?
- A . Tableau
- B . PowerBI
- C . D3.js
- D . Matplotlib
Which of the following can be used for data acquisition in Python programming?
- A . Pandas
- B . Matplotlib
- C . NumPy
- D . Requests
What is the purpose of data pre-processing in a data analytics workflow?
- A . To make the data more difficult to analyze
- B . To remove noise and irrelevant information
- C . To increase the computational complexity
- D . To slow down the data analysis process
What is the output of the following code snippet? “`python x = 5 y = 2 print(x ** y) “`
- A . 7
- B . 10
- C . 25
- D . 32