Description

SESSION JUL – AUG 2024
PROGRAM MASTER OF BUSINESS ADMINISTRATION (MBA)
SEMESTER III
COURSE CODE & NAME DADS304 VISUALIZATION

Assignment Set – 1

1. Explain the visualization cycle.
Ans 1.
The visualization cycle is a systematic process of transforming raw data into meaningful,
visually interpretable insights. This cycle ensures that data is effectively represented to convey
patterns, trends, and relationships. The visualization cycle typically involves the following
stages:
1. Understanding the Problem and Audience Before creating any visualization, it is essential
to define the purpose and understand the audience. Knowing the context of the problem and
the type of insights required helps in determining the nature of data representation. For
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2. What are scatter plots? Explain different types of Scatter Plots.
Ans 2.
Understanding Scatter Plots
The primary purpose of a scatter plot is to reveal the nature of the relationship between the two
variables. This relationship can take different forms, such as positive correlation (both variables
increase together), negative correlation (one variable decreases as the other increases), or no
correlation (no discernible pattern). For example, plotting advertising spend on the x-axis and
sales revenue on the y-axis might reveal a positive correlation, indicating that increased
3. What are Tree Maps? Where can we use this type of visualization?
Ans 3.
Tree maps are a visualization technique used to represent hierarchical data in a compact and
efficient manner. They display information using nested rectangles, where each rectangle
corresponds to a category or subcategory of data. The size of each rectangle is proportional to
a specific numerical value, and colors can be used to indicate additional dimensions, such as
performance metrics or trends. Tree maps are particularly useful for visually summarizing
Assignment Set – 2
4. Differentiate between Power BI and Tableau
Ans 4.
Power BI and Tableau are two leading tools in the business intelligence and data visualization
landscape. Both aim to transform raw data into actionable insights through visually appealing
and interactive dashboards. Despite their shared purpose, Power BI and Tableau differ
significantly in terms of features, usability, and target audience.
Overview of Power BI
Power BI, developed by Microsoft, is designed for ease of use, affordability, and integration
5. Write Short Notes on the following:
a) Ggplot2
b) Drill Down (Power BI)
c) Slicer
d) Calculated Field
Ans 5.
a) Ggplot2
Ggplot2 is a popular data visualization package in the R programming language, designed to
create high-quality and aesthetically pleasing visualizations. It is based on the “Grammar of
Graphics” concept, which provides a systematic approach to building visualizations by layering
components such as data, geometries (e.g., points, bars), scales, and themes. Ggplot2 allows
for a high degree of customization and is widely used in data science and analytics for its ability
6. How does visualization help in business decisions? Explain.
Ans 6.
Visualization is a critical tool in business decision-making as it transforms raw, complex data
into meaningful, easily interpretable visual representations. By using graphs, charts,
dashboards, and interactive tools, businesses can uncover patterns, trends, and insights that
drive informed decisions. The ability to visualize data empowers decision-makers to interpret
and act on information quickly and effectively, making it an indispensable component of