Question 1

**Part A (Multiple Choice Questions):** Each question has four choices, out of which only one is the correct answer. (12×3=36 marks)\ Q1. Considering the image given below, which showcases a random listener's music-listening habits over time, what type of visualization is being depicted?\[MCQ: 3 marks\] Streamgraph of music artists listened to over January and February 2012 A. Temporal\ B. Hierarchical\ C. Network-based\ D. Geospatial\ Q2. Which of the following represents a static data visualization?\[MCQ: 3 marks\]\ A. A heat map illustrating the correlation between two variables.\ B. A line chart depicting the changes in stock prices over a month.\ C. A scatter plot showcasing the relationship between age and income.\ D. A bar chart displaying the sales figures for various product categories.\ Q3. The provided visualization below is an example of the:\[MCQ: 3 marks\] Funnel flow chart from 12,500 impressions to 5,700 add to cart to 930 buy, split by Direct, Social Media and Ads A. Correlation\ B. Distribution\ C. Part to whole\ D. Ranking\ Q4. How are images typically stored in vector graphics?\[MCQ: 3 marks\]\ A. Point\ B. Polygon\ C. Pixels\ D. Contours\ Q5. Shoe size (e.g., 7, 8, 9) represents which type of data?\[MCQ: 3 marks\]\ A. Categorical\ B. Ordinal\ C. Interval\ D. Ratio\ Q6. Which type of data allows you to say definitively that one value is twice as large as another?\[MCQ: 3 marks\]\ A. Categorical\ B. Ordinal\ C. Interval\ D. Ratio\ Q7. This visualization illustrates a comparison among different social media platforms. It serves as an instance of:\[MCQ: 3 marks\] Infographic table of social media platforms (shown as logos) with What it is, Demographics and Users/Usage A. Idea generation\ B. Idea illustration\ C. Visual confirmation\ D. Visual discovery\ Q8. A survey asks students to report their blood group. What type of data does this\ represent?\[MCQ: 3 marks\]\ A. Interval data\ B. Ratio data\ C. Nominal data\ D. Ordinal data\ Q9. Which of the following statements accurately describes a choropleth map?\[MCQ: 3 marks\] A. It is detailed but imaginary.\ B. It is detailed and accurate.\ C. It is accurate but abstract.\ D. It is imaginary and abstract.\ Q10. What type of data is represented by the visualization shown in the figure given below?\[MCQ: 3 marks\] Line chart "Fill below to" with a value line and a shaded min-max band over time Courtesy: Graphana Documentation\ A. Temporal\ B. Hierarchical\ C. Network-based\ D. Geospatial\ Q11. Hair color (like red, blonde, and black) represents which type of data?\[MCQ: 3 marks\] A. Ratio data\ B. Ordinal data\ C. Categorical data\ D. Interval data\ Q12. Which of the following best describes the given picture scenario?\[MCQ: 3 marks\] Hand-drawn ideation sketch of "Connected Photo Frames", courtesy Designjournalsos A. Visual confirmation\ B. Visual discovery\ C. Idea generation\ D. Idea illustration **Part B – Multiple Select Question:** Each question has four choices, out of which one or more than one choice(s) is the correct answer. (8×4=32 marks)\ Q1. Which of the following variables could be considered both Interval and Ratio data?\[MSQ: 4 marks\]\ A. Time measured in seconds\ B. Pain intensity on a visual analog scale.\ C. IQ scores\ D. Distance in kilometers\ Q2. Analyzing the distinctions between data visualization and infographics, identify the accurate statements:\[MSQ: 4 marks\]\ A. Data visualizations primarily focus on presenting data in a clear and concise manner. B. Infographics often incorporate storytelling elements, guiding the viewer through a sequence of information.\ C. Data visualizations are more visually complex, involving creative design elements.\ D. The primary purpose of infographics is to represent raw data for scientific analysis. E. Infographics use visuals to tell a broader story, combining data with additional context and design elements.\ Q3. What kind of information is commonly depicted on thematic maps?\[MSQ: 4 marks\] A. Population density\ B. Interior design details\ C. Molecular structures\ D. Cooking recipes\ Q4. Select the statements that accurately describe the role of data semantics:\[MSQ: 4 marks\] A. Data semantics focuses solely on the aesthetics of data visualizations.\ B. It helps in uncovering hidden patterns and trends within the dataset.\ C. Semantically rich data facilitates clearer communication of insights.\ D. Consistent data semantics ensures uniformity in visual representations.\ E. Data semantics do not impact the audience's engagement with visualizations.\ F. Semantically meaningful data simplifies the process of data cleaning.\ Q5. Consider the following visualizations. Identify the correct statements:\[MSQ: 4 marks\] A. Radar charts are primarily used for displaying time-series data.\ B. Scatter plots are effective in illustrating the relationship between two continuous variables. C. Histograms are often used to visualize the geographic distribution of data.\ D. Violin plots are commonly used for displaying the distribution of data within subgroups. E. Network graphs are useful for showcasing the hierarchical structure of data.\ Q6. What are the primary objectives of data visualization?\[MSQ: 4 marks\]\ A. Facilitating the efficient communication of information.\ B. Improving the comprehensibility, accessibility, and usability of intricate data.\ C. Strictly adhering to a predefined narrative when presenting data.\ D. Elevating the visual attractiveness of data by focusing on design and formatting.\ Q7. Select the accurate statement(s) of the following about specific visualizations.\[MSQ: 4 marks\] A. Pie charts are suitable for displaying trends over time.\ B. Bubble charts are effective for illustrating the hierarchical structure of data.\ C. Tree maps are commonly employed to represent the hierarchical structure of categories. D. Heatmaps are primarily used to visualize geographic distribution.\ Q8. Which of the following statements regarding geospatial visualizations is/are correct?\[MSQ: 4 marks\]\ A. Isopleths are adept at illustrating patterns in continuous data, such as temperature gradients. B. Isopleths are primarily designed for showcasing discrete and categorical data.\ C. Choropleth maps effectively convey variations in data across geographic regions Using color gradients.\ D. Isopleths and Choropleths are interchangeable terms describing the same mapping technique. **Part C – Short Answer Questions:** Write 100-150 words answers to each question. Answer using pen \& paper and add sketches/drawings to support them in the paper provided to you. (2x16=32 marks)\ Q1. Critically analyze this visualization and suggest at least one redesign with improvements. \[16 Marks\] Bar chart "COVID-19 in Singapore" of new cases confirmed and patients discharged by day from January to March Q2. Below are 4 visualizations that appeared in *The Economist*. The image on the left is the original and the corresponding image on the right shows how it has been improved. Explain how the improvement makes it better in each of the cases. \[16 Marks\] 1. Original and Better versions of the "Left-click" bar chart of average likes per Facebook post, 2016 2. Original and Better versions of the "Fit as a butcher's dog" dual-axis line chart of dog weight and neck size 3 Original and Better versions of the "Bremorse" line chart of % responding right or wrong to leave the EU Option 4: Original vs Better scatter plots of "Brazil's golden oldie blowout" (government pension spending vs population aged 65+)