Scenario Based Tableau Interview Questions

43. What type of chart would you use to visualize the quarterly sales trends for the last five years?

A line chart or time series line chart can be used for displaying quarterly sales patterns over the previous five years. A line chart makes it possible to compare sales patterns clearly between years since it shows each year’s quarterly sales data as a separate line. Using this type of graphic, you may spot trends, seasonality, and variations in sales performance over a five-year period. A Time Series Line Chart offers extra possibilities, such as trend analysis and forecasting, if you have a date dimension. These graphs provide insightful information on sales trends, making them crucial tools for performance evaluation and data-driven decision-making in corporate situations.

44. Which chart will you use to visualize the distribution of data across different quartiles?

A Box Plot, also known as a Box-and-Whisker Plot, is an effective visualization tool for comprehending data distribution over quartiles. It offers a succinct breakdown of the major statistics in a dataset. The graphic consists of a box with the median inside that symbolizes the interquartile range (IQR). To help spot outliers, the “whiskers” extend from the box to the minimum and maximum values inside a range. Box plots are great for displaying the central tendency, spread, skewness, and occurrence of extreme values in data. They are helpful for data analysis and statistical comparisons because they provide a rapid and meaningful perspective of how data is distributed across quartiles.

45. Which chart will you use to compare the market share of different companies in a specific industry?

To compare the market share of different companies in a specific industry, a Stacked Bar chart or a Group Bar chart is commonly used. These chart types allow you to visualize the market share of each company within the industry, making it easy to see how they compare to one another.

Stacked Bar chart: A stacked bar graph shows the evolution of a category’s entire market size. Each part shows the market share of a different company and is stacked. The percentage of the company’s market share is shown in segment height, effectively indicating market composition.

Group Bar Chart: A grouped bar graph groups bars for each period of time or category. With bars denoting several companies, each group denotes a time period or category. A company’s market share for that category is shown by the length of the bar, allowing for easy comparisons.

46. Which chart would be best to visualize the share price trends across the year of different companies of a specific industry?

The best option is a Multiple Line Chart or a Line Chart with Multiple Series to show share price patterns over the course of the year for many businesses in a certain industry. With the use of this chart type, you can compare the performance of various companies over time by plotting the share price movements for each firm on the same graph. You can see how the share prices of each line, which each represents a distinct firm, change and develop throughout the course of the year. When examining and contrasting the performance of various businesses operating in the same industry, this method is especially useful.

47. How can we visualize the multiple dimensional data like correlations or covariance in Tableau?

It might be difficult to visualize covariance or correlation between numerous dimensions in Tableau since these metrics frequently entail pairwise comparisons. To learn more about relationships, you can construct heatmaps and scatter plots. Here’s how:

• Create a scatter plot matrix for pairwise comparisons.
• Use a heatmap to represent relationships with color.
• Calculate correlations using table calculations or custom formulas.
• Add interactivity with parameters or filters.

48. What chart will be suitable to display the distribution of data points in a single variable?

A histogram is an appropriate graph to show how data points in a single variable are distributed. The frequency or count of data points inside predetermined intervals or bins is represented visually by a histogram. It enables you to observe any patterns or outliers, as well as the distributional shape of the data and central tendencies. For understanding the distribution of continuous or numerical data, histograms are especially helpful.

49. When we have data with a hierarchical structure, such as product categories and subcategories, which chart will be best suitable to show this hierarchy?

When you have hierarchical data structures like product categories or sub-categories, the best chart to show this hierarchy and the relationships between different levels is a TreeMap.

A TreeMap is a hierarchical data visualization that uses layered rectangles to show categories and subcategories. Rectangles are nested to indicate the hierarchy, with bigger rectangles signifying parent categories and smaller rectangles inside signifying subcategories. Each rectangle’s size gives quantitative information, and additional information can be encoded using color. The interactive nature of treemaps allows viewers to click on parent rectangles to explore subclasses.

50. What is a tableau reporting tool?

Tableau is a potent business intelligence (BI) and data visualization software program used to create interactive and shareable reports and dashboards. Users can connect to different data sources with it, transform unprocessed data into insightful visuals, and derive insights from their data. The user-friendly design of Tableau and its wealth of tools for data exploration, analysis, and storytelling are well-known. To transform data into usable insights, make data-driven choices, and effectively convey findings through interactive reports and dashboards, it is widely utilized in businesses across industries. The several editions of Tableau include Tableau Desktop (for authoring reports), Tableau Server (for sharing and collaborating on reports), and Tableau Online (a cloud-based version).

Also Read:

• Tablaue Tutorial
• Different Tablaue Products and Its Applications
• What is Tablaue and Its Importance in Data Visualization
• Tablaue Data Type
• Power BI vs Tableau
• Tablaue File System

Conclusion

In this article we have listed 50 top most asked Tableau interview questions and answers for freshers and experienced (basics to advance). Over the years careers in data visualization and data analysis have grown and the demands of good data analysts or BI experts are also growing parallelly.

So keep learning and keep practising the questions to crack any Tableau interviews.

Tableau is a powerful data visualization tool that turns raw data into understandable insights. It helps users create interactive and shareable dashboards, charts, and reports, making it easier to analyze and communicate complex data trends for better decision-making in business and other fields.

In this article, we have provided you with the top 50+ Tableau Interview questions with answers that cover everything from basics to advanced. Whether you are a fresher or an experienced IT professional (5 years or 10 years of experience ), this article gives you all the confidence you need to ace your next Tableau interview in one go!