Tableau Desktop Certified Associate Practice Test - Questions Answers, Page 8
List of questions
Question 71
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Connect to the 'Kiva Loans - India' data source, find out which sector has the highest distribution of loan amount using interquartile ranges?
Explanation:
Create a box plot using Sector and Loan amount.
The IQR is maximum for the Wholesale sector.
Question 72
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Connect to the 'Kiva Loans - India' data source, create a chart using the continuous disbursed month (Disbursed Time field) and sum of the loan amount, exclude the null values. What is the skewness of this chart?
Explanation:
Enable the Summary Card from Show/Hide menu as shown:
Skewness is .42
Question 73
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In a box plot, how we can calculate the length of the Upper whisker?
Explanation:
The upper whiskers extends to 1.5 * IQR
The length of the upper whisker is upper hinge + 1.5 * IQR.
Question 74
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Connect to the 'Flight' data source and find out which carrier was having the highest percentage of delayed flights in 2013?
Explanation:
Create the calculated field:
Drop the carrier name to the view and % of delayed flights to text.
We only have 2013 data, so filter won't make a difference:
Question 75
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Connect to the 'Flight' data source and create a hierarchy as City-Airport Name-Carrier Name. Find out which combination was having the lowest number of on-time flights?
Explanation:
Create a hierarchy using City-Airport Name-Carrier Name.
Filter using Ontime Category field and select the Ontime.
Drop the hierarchy to the view and Number of flights to the Text.
Check each combination from the answers:
Question 76
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In table calculations, partitioning fields define the direction of the calculation.
Explanation:
When you add a table calculation, you must use all dimensions in the level of detail either for partitioning (scoping) or for addressing (direction).
Refer: https://help.tableau.com/current/pro/desktop/enus/
calculations_tablecalculations.htm
Question 77
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Connect to the 'WorldBank Data' and use the Development Indicators table. Create a country map of the Europe and Central Asia region. Find out which neighboring country of Romania is having a greater average GDP per capita than Romania?
Explanation:
Drop the Country field to the view.
Drop the Region to the filters shelf and select Europe & Central Asia.
Drop the GDP per capita to the label and change the aggregation to Avg.
Question 78
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Connect to the 'WorldBank Data' and use the Development Indicators table. Create a relationship between the avg. birth rate and avg. death rate using scatterplot aggregated at the region level, plot death rate on Y-axis and birth rate on X-axis. Add an exponential trendline and find out how many regions are above the trend line?
Explanation:
After following the steps mentioned in the question your view will look like this:
Here, 5 points are above the exponential trend line.
Question 79
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Connect to the 'Global Superstore' data source and use the Orders table. Find out the percentage of total sales in all the categories in 2015 by customers who have purchased any product in the Phones sub-category in 2014? Use Customer ID.
Explanation:
Approach 1 -- Using Groups
Drop the Customer ID to the Rows.
Add sub-category to the filter and select phone.
Add Order date to the filter and select the year 2014.
Select all the customers and click on paper clip icon to create the group.
So here we got all the customers who have purchased any product in the Phones subcategory in 2014.
Edit the group and select Include other
Clear the filter shelf, and again add Order date to the filter and select 2015.
Drop Sales to the Text.
Add 'Percent of Total' Quick Table Calculation to the Sales field.
Your view will look like this:
Approach 2 -- Using LOD
Create a LOD expressions as:
It will return 1 for the customers who have purchased any product in the Phones sub-category in 2014. For others, it will return 0.
Drop this field to the Rows and add Order date to the filter and select the year 2015.
Question 80
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In Forecast, what is the shaded region?
Explanation:
Refer: https://help.tableau.com/current/pro/desktop/en-us/forecast_create.htm
Question