wk 9 quiz

You are analyzing the sales performance of different products across various regions. You have collected data on the revenue generated by each product, the corresponding region, and the number of units sold. You want to visually represent this data to compare the products in terms of revenue, region, and sales quantity. Which of the following charts is best suited to accomplish this task? A) Bubble B) Line C) Time series D) Bar

A) Bubble The bubble chart is best suited to visually represent the data to compare the products in terms of revenue, region, and sales quantity. It is a variation of the scatter plot that replaces data points with a cluster of circles. It is used to display three dimensions of data: two dimensions through the bubble's location and a third dimension through size. Answers B and C are incorrect. The line chart (time series chart) is best suited for displaying trends over a period of time. Answer D is incorrect. The bar chart is best suited for numerical data that can be divided into distinct categories to compare information and reveal trends at a glance.

Which of the following statements are true for a tree map? Each correct answer represents a complete solution. Choose all that apply. A) Use dimensions to define the structure of a tree map. B) Use measures to define the size or color of the rectangles. C) Drag a dimension to the Columns shelf and a measure to the Rows shelf to start building a tree map. D) Use the Pages shelf to start building a tree map.

Answers A, B, and C are correct. The following statements are true for a tree map: - Use dimensions to define the structure of a tree map. - Use measures to define the size or color of the rectangles. - Drag a dimension to the Columns shelf and a measure to the Rows shelf to start building a tree map.

Which of the following points should be taken into consideration while using a dessert chart? Each correct answer represents a complete solution. Choose all that apply. A) Make sure all wedges add up to 100%. B) Avoid three-dimensional effects. C) Slice as few values as possible, ideally four, but up to ten is appropriate. D) Add labels to quantify the exact wedge value.

Answers A, B, and D are correct. The following points should be taken into consideration while using a dessert chart: - Make sure all wedges add up to 100%. - Avoid three-dimensional effects. - Add labels to quantify the exact wedge value. - Slice as few values as possible, ideally two, but up to five is appropriate. - Start at noon and move clockwise to sort slices from largest to smallest value. - Use color and white space to keep wedges clearly distinguishable. - When possible, elevate a pie chart to a doughnut chart, and utilize the doughnut hole to include a key metric or key performance indicator (KPI).

Which of the following visualizations is an effective way to visualize numerical variables to compare measures? A) Line chart B) Scatter plot C) Bar chart D) Heat map

B) Scatter plot A scatter plot is an effective way to visualize numerical variables to compare measures. It quickly identifies patterns, trends, concentrations, and outliers. It is particularly useful when exploring statistical relationships such as linear regression. Answer A is incorrect. A line chart is used to display trends over a period of time. Answer C is incorrect. A bar chart is best suited for numerical data that can be divided into distinct categories to compare information and reveal trends at a glance. Answer D is incorrect. A heat map is a great way to compare categorical data using color.

Which of the following types of visualizations is best suited for numerical data that can be divided into distinct categories to compare information and reveal trends at a glance? A) Line chart B) Scatter plot C) Bar chart D) Heat map

C) Bar chart A bar chart is best suited for numerical data that can be divided into distinct categories to compare information and reveal trends at a glance. It can be combined with maps or line charts to act as filters that correspond to different data points as they are selected. Answer A is incorrect. A line chart is best suited for displaying trends over a period of time. Answer B is incorrect. A scatter plot is best suited for exploring statistical relationships such as linear regression. Answer D is incorrect. A heat map is best suited to compare categorical data using color.

Which of these is considered a best practice when working with bar charts? A) Randomly arranging the data points for a visually appealing display B) Placing the largest data points in the middle for better visibility C) Sorting the data in either ascending or descending order depending on the use case D) Removing any legends or annotations for better visibility

C) Sorting the data in either ascending or descending order depending on the use case Sorting the data in either ascending or descending order, depending on the use case, is considered a best practice when working with bar charts. An easy way to do so is to use the corresponding Sort icons on the toolbar.

Which of these is the correct way to create a vertical bar chart in Tableau? A) Placing a measure on the Rows shelf and a dimension on the Columns shelf B) Placing a dimension on the Rows shelf and a measure on the Columns shelf C) Placing a dimension on the Pages shelf and a measure on the Marks shelf D) Placing a measure on the Pages shelf and a dimension on the Marks shelf

neither of these are correct, put a dimension in the columns and a dimension in the rows is the correct