Question 1

This clustering technique can only use numeric values as input.

Accepted Answer

K-Means

Answer

Linear Regression

Answer

What is clustering?

Answer

Hierarchical

Question 2

This clustering technique is slow on big datasets

Accepted Answer

Hierarchical

Answer

Classification Trees

Answer

I'm still not sure what Clustering is.

Answer

K-means

Question 3

This clustering technique returns a dendrogram as the output

Accepted Answer

Hierarchical

Answer

Stop asking about clustering

Answer

K-means

Answer

t-test

Question 4

This is the most common clustering technique and produces a plot cluster

Accepted Answer

K-means

Answer

Hierarchical

Answer

Correlation test

Answer

For the love, stop asking about clustering

Question 5

What is not a characteristic of unsupervised learning

Accepted Answer

The analyst has a theory of what the data might reveal

Answer

Exploratory in nature

Answer

Results can be used as input to predictive models

Answer

Outcome may reveal patterns in the data

Question 6

Given the following diagram, what do the numbers 1, 9, and 12 mean in the very bottom of the diagram

Accepted Answer

1 is the prediction, 9 students did not get into grad school, 12 students got into grad school

Answer

1 is the prediction, 9 students got into grad school, 12 students did not get into grad school.

Answer

9 is the prediction, 1 student got into grad school, 12 students did not get into grad school.

Answer

12 is the prediction, 9 students got into grad school, 1 student did not get into grad school.

Question 7

Given the following diagram, what is the GPA range for a student who is in the 1, 9/12 box

Accepted Answer

GPA >= 3.72

Answer

GPA < 3.515

Answer

GPA < 3.72

Answer

GPA >= 3.515 and GPA <= 3.72

Question 8

Given the following diagram, what is the GRE range for a student who is in the 1, 9/12 box

Accepted Answer

GRE >= 510 and GRE < 690

Answer

GRE >= 690 and GRE < 710

Answer

GRE > 510 and GRE < 690

Answer

GRE < 510

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