Data Visualization Quiz

What is the primary advantage of using a Stacked Bar Chart compared to a regular Bar Chart when analyzing sales by category and market?

• It shows trends over time more clearly

• It reveals the composition within each bar

• It requires less space for the same data

• It eliminates the need for color coding

When creating a Packed Bubble chart, which visual properties are typically used to encode the data dimensions?

• Position and shape

• Length and width

• Color and size

• Angle and radius

You create a visualization to compare the actual Profit (a primary measure) against a target Sales value (a comparative measure) for various product categories. You want a single bar for each category with the target marked clearly inside the bar. Which chart type accomplishes this?

• Bar-in-Bar Chart

• Dual-Axis Line Chart

• Bullet Graph

• Highlight Table

An analyst creates a line chart showing Sales from 2012 to 2015. They notice the data is aggregated by year, showing a single, unbroken line. They want to change it so that each quarter within each year is shown as a separate, discrete segment on the chart. What must they change?

• Change the date field from Date Value to Date Part.

• Add a Reference Line for each quarter.

• Change the mark type from Line to Bar.

• Change the date field from Continuous to Discrete.

What is a line chart primarily used for?

• Displaying proportions of a whole

• Showing trends over time

• Representing hierarchical data

• Visualizing relationships between two variables

Which type of chart is best for comparing different categories?

• Pie Chart

• Scatter Plot

• Line Chart

• Bar Chart

What does a heatmap use to represent data values?

• 3D graphics

• Text labels

• Shapes and sizes

• Color gradients

A business manager wants to quickly identify which products have both high sales and high profit margins across different markets. Which visualization would provide the most immediate insight?

• Separate Bar Charts for sales and profit

• Heat Map with sales and profit measures

• Text Table with grand totals

• Pie Chart by product category

What does the term 'exploratory data analysis' refer to?

• Storing data securely for future use

• Collecting data from various sources

• Presenting data findings to an audience

• Analyzing data to find hidden trends

When interpreting a Box Plot, which of the following statements is TRUE?

• The length of the "whiskers" indicates the value of the mean.

• If the median is near the center of the box, the distribution is approximately symmetric.

• If the median is to the left of the center of the box, the distribution is positively skewed.

• Outliers are always represented by the ends of the whiskers.