CHDA Chapter 1 Questions With Complete Solutions
____ allows an analyst to measure the strength of evidence from
the data to reject or not reject a hypothesis Correct Answers
hypothesis testing
____ and ____ are both use to discover patterns in data Correct
Answers Exploratory data analysis (EDA)and data mining
____ data collected through the use of open ended questions
such as these are unstructured data Correct Answers qualitative
data
____ traditionally uses graphical images to display the data and
identify outliers Correct Answers EDA
-Also looking for patterns in data
-Adds in descriptive statistics and more formal statistical
techniques
-May be used for benchmarking and determining high/lower
performers Correct Answers data mining
-Describes observations about a subject
-Typically free text or comments Correct Answers Qualitative
data
-Used to uncover patterns in data
-Typically a secondary use of data
-Primarily graphical analysis (plots, trends, etc.) Correct
Answers exploratory data analysis
