WGU D204- Data Analytics Tools and Techniques Exam Questions with Correct Answers 100%
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Which technique can be used to determine the likelihood that a positive diagnostic test result
indicates whether the disease is actually present? Bayes theorem
Which concept should be considered when choosing variables for inclusion in a linear
regression model? Feasibility of controlling the variables
A neural network algorithm in machine learning endeavors to recognize underlying
relationships in a set of data. What does this process mimic? The way the human brain
operates
Which characteristics are used to group data together in a cluster analysis? Distance and
Similarity
Which tool has libraries that expand its visualization capabilities? Python
Which tools can be used for performing statistics and creating interactive data visualization for
large data sets from various sources? Tableau & R
Which type of data representation should a data analyst use to display expense categories as a
percentage of total business expenses? Pie chart
Histogram A graph of vertical bars representing the frequency distribution of a set of data.
Convenient to show outliers in data and skewness
box plot Provides a concise summary of the quartiles of numberical data. A graph that
displays the highest and lowest quarters of data as whiskers, the middle two quarters of the
data as a box, and the median
Verified By Experts| Latest Update Guaranteed Success
Which technique can be used to determine the likelihood that a positive diagnostic test result
indicates whether the disease is actually present? Bayes theorem
Which concept should be considered when choosing variables for inclusion in a linear
regression model? Feasibility of controlling the variables
A neural network algorithm in machine learning endeavors to recognize underlying
relationships in a set of data. What does this process mimic? The way the human brain
operates
Which characteristics are used to group data together in a cluster analysis? Distance and
Similarity
Which tool has libraries that expand its visualization capabilities? Python
Which tools can be used for performing statistics and creating interactive data visualization for
large data sets from various sources? Tableau & R
Which type of data representation should a data analyst use to display expense categories as a
percentage of total business expenses? Pie chart
Histogram A graph of vertical bars representing the frequency distribution of a set of data.
Convenient to show outliers in data and skewness
box plot Provides a concise summary of the quartiles of numberical data. A graph that
displays the highest and lowest quarters of data as whiskers, the middle two quarters of the
data as a box, and the median
