Unit 5: Quiz 2 – Version A – Solutions

A snack company has decided to perform market research to determine common characteristics between shoppers at a supermarket. They want to be able to group similar shoppers together to easily analyze the data. This is an example of what type of data mining strategy?

• Cluster analysis

• Regression

• Association rule mining

• Outlier/anomaly detection

The statement “If a customer buys a dozen eggs, he or she is 80% likely to also purchase milk.” is a conclusion that may be determined from what type of data mining?

• Association Rule Mining

• Anomaly or Outlier Detection

• Clustering Analysis

• Regression Analysis

Two parents are trying to figure out how tall their child might be by using a formula that was created based on studying large numbers of parents and children. This formula takes into account the heights of the parents along with other key factors. This is an example of what kind of analytics?

• Descriptive

• Predictive

• Prescriptive

• Correlative

A teacher noticed that they have had a lot of students in their classes that didn’t perform very well on homework and classwork assignments, but still seemed to perform similarly to other students on the final exam. In order to check their claim, a statistics teacher helped them to create the following graph from a data set that compares a student’s final exam grade (FE_Grade) to their marking period average (Average) in the class. The teacher’s observations and the graph are both an example of what data analysis technique?

• Cluster analysis

• Regression

• Association rule mining

• Data classification

After reviewing the service records at a car dealership, the CEO (chief executive officer) discovered that customers who scheduled a service for a transmission fluid exchange and differential fluid exchange also typically scheduled a service for an oil change. This conclusion is obtained using what data analysis technique?

• Classification

• Association rule mining

• Clustering

• Regression