Data Visualization Basics By A Staff Writer / July 11, 2025 Welcome to your Data Visualization Basics Level: Beginner What is the primary purpose of data visualization? To improve computational efficiency To represent data graphically for better understanding To clean and preprocess data To store data in secure servers None Which of the following is a commonly used data visualization tool? Tableau Hadoop TensorFlow Kubernetes None What type of chart is best for showing trends over time? Bar Chart Line Chart Scatter Plot Pie Chart None What is a heatmap used for? To visualize relationships between two variables To show intensity or density of data using colors To create 3D plots To display hierarchical data None What is the first step in creating a data visualization? Cleaning the dataset Defining the purpose or question you want to answer Choosing a color scheme Exporting data into a visualization tool None Time's up
