Quiz 8 : Fundamental of Data Visualization – Effectiveness of Chart Usage 1. The dashboard in the image is effective despite the lack of a title or description. A. True B. False 2. The use of a bright color scheme in the dashboard enhances data readability and interpretation. A. True B. False 3. The dashboard in the image effectively uses a mix of bar charts, line graphs, and box plot to display sales performance metrics. A. True B. False 4. The dashboard's design could be improved by adding a clear title or description and using a more muted color scheme. A. True B. False Quiz 9 : Fundamental of Data Visualization – PowerBI and Looker Data Studio 5. What is the main function of Power View in Power BI? A. It is responsible for data extraction and transformation B. It is used to create interactive visuals and reports C. It is used for data modeling D. It is used to maintain data accuracy 6. Why is data visualization crucial in data analysis? A. It makes data less complex B. it aids in identifying patterns, correlations, and trends C. It enhances the aesthetic appeal of data D. It requests the need for data cleaning 7. How does Looker Data Studio aid in the decision-making process? A. It provides real-time data visualization, helping stakeholders understand the data easily B. It allows users to input data manually for analysis C. It designs graphics and logos for the company D. It assists in creating Word documents for meetings 8. What is the main difference between a histogram and a bar chart in data visualization? A. Histograms are for categorical date; bar charts are for numerical data B. Histograms show distributions of variables: bar charts compere variables C. Histograms require more data than bar charts D. Histograms can only be used with Power BI