Data Visualization Design · Quiz 1 · Jan 2023

What is the total cash flow of the company at the end of the year

Instructions: The exam is pen & paper based and should be answered in the sheets provided to you. Part A (Multiple Choice Questions): Each question has four choices, out of which only one is the correct answer. (12x3=36 marks) 1. The measurement scale ‘Very satisfied, Satisfied, Neutral, Unsatisfied, Very unsatisfied’ in a customer survey will produce: a. Categorical data . Ordinal data b. c. Interval data d. Ratio data 2. In a candidate list for an election in a constituency, the columns showing name of the party affiliation and gender are of which type of data? a. Categorical data b. Ordinal data c. Interval data d. Ratio data 3. Temperature measured in Celsius scale is which type of data? a. Categorical data b. Ordinal data c. Interval data d. Ratio data 4. The values in which type of data can be multiplied and divided? a. Categorical data b. Ordinal data c. Interval data d. Ratio data

Part B - Multiple Select Question: Each question has four choices, out of which one or more than one choice(s) is the correct answer. (8x4=32 marks) 1. Which of the following is an example of derived data? a. Combining population data with geographic data to create population density data Concluding whether the temperature is increasing or decreasing by looking at 50 years of temperature readings of a city Calculating the BMI of a population in a dataset that contains heights and weights Computing the mean and median of a range of values 2. Understanding data characteristics is important in visualization in order to: a. Create an aesthetically rich visualization b. Map data types to their most effective visual attributes Ci d Create a good mental model for the viewer/audience . Understand which mathematical operations can and cannot be done during the analysis 3. The number of runs scored by a batsman as a proportion of the team score is an example of which type of data? a. b c. d Categorical data . Interval data Quantitative data |. Ratio data 4. Which of the following is/are true about Heatmaps and Choropleths. b. A heat map can depict data across an arbitrary grid of cells, their size specified by the cartographer, but uniformly calculated A heat map uses regions drawn according to the pattern of the data values Choropleth maps display data values in standard geographical boundaries/regions Both refer to the same map technique 5. Given map projections are a set of transformations employed to represent the two-dimensional curved surface of a globe on a plane, which of the following statements are true? a. All projections of a sphere on a plane necessarily distort the surface in some way and to some extent b. Depending on the purpose of the map, some distortions are acceptable and others are not c. Different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties. d. The widely used Mercator projection, developed for navigational purposes has the least distortions and hence the best projection 6. Which of the following is/are true about Infographics and Data Visualizations? a. Data visualizations are aesthetically rich b. Data Visualizations typically deal with larger amounts of data c. It is easy to repurpose a data visualization with a different set of data d. Data visualizations can accommodate real-time data 7. Which of the following is/are true about Infographics? a. Infographics are data poor b. Infographics are typically algorithmically drawn c. Infographics are non-trivial to recreate with different data d. Infographics aesthetically rich

Part C - Short Answer Questions: Write 100-150 words answers to each question. Answer using pen & paper using the paper provided to you. (4x8=32 marks) 1. Critically analyze this visualization. Critique its effectiveness, and suggest at least one improvement. Average male height per country eo" + S11" + $'10" -- 5” 58 7 56 5s sa” so sz svt 50” + a TheNetherlands UK USA India —_ Indonesia ® Patient