Data Science Methodology

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Final Exam

Latest Submission Grade 58.33%

1.

Question 1

Select the correct statement.

0 / 1 point

The first stage of the data science methodology is Data Collection.

The first stage of the data science methodology is Modeling.

The first stage of the data science methodology is Data Understanding.

The first stage of the data science methodology is Business Understanding.

Incorrect

2.

Question 2

______________________ is an important stage in the data science methodology because it clearly defines the problem and the needs from a business perspective.

1 / 1 point

Business Understanding

Data Collection

Modeling

Data Understanding

Correct

3.

Question 3

According to the videos explaining the Data Requirements and Data Collection stages of the data science methodology, you can think of the Data Requirements and Data Collection stages as a cooking task, where the problem at hand is a recipe, and the data to answer the question is what?

0 / 1 point

The ingredients

The temperature to cook at

The presentation

The measurements

Incorrect

4.

Question 4

In the Data Collection stage, techniques such as descriptive statistics and visualization can be applied to the data set, to assess the content, quality, and initial insights about the data

1 / 1 point

True

False

Correct

5.

Question 5

A training set is used for _________________.

1 / 1 point

Descriptive modeling

Data Visualization

Predictive modeling

Statistical analysis

Correct

6.

Question 6

A false-positive is what type of error?

1 / 1 point

Type L error

Type III error

Type II error

Type I error

Correct

7.

Question 7

The Data Understanding stage encompasses what?

1 / 1 point

Transforming data

Sorting the data.

All activities related to constructing the dataset.

Removing redundant data.

Correct

8.

Question 8

In what stage would you properly format the data?

1 / 1 point

The Modeling stage

The Data Requirements stage

The Data Preparation stage

The Data Understanding stage

Correct

9.

Question 9

The final stages of the data science methodology are an iterative cycle between Modeling, Evaluation, Deployment, and ___________.

0 / 1 point

Data Understanding

Data Preparation

Feedback

None of the above.

Incorrect

10.

Question 10

Deploying a model into production represents the beginning of an iterative process from Feedback, then Model Refinement, and to what?

1 / 1 point

Redeployment

Data storage

Scalability

None of the above

Correct

11.

Question 11

Select the incorrect sentence about the data science methodology as explained in the course.

0 / 1 point

The data science methodology provides the data scientist with a framework on how to proceed to obtain answers.

The data science methodology always starts with Business Understanding.

The data science methodology is not an iterative process – one does not go back and forth between methodological steps.

The data science methodology does not depend on a specific set of technologies or tools.

Incorrect

12.

Question 12

As a data scientist what is typically NOT used for exploratory analysis of data?

0 / 1 point

Vector machines, Descriptive statistics

Deep Learning, Data visualization

Clustering, Deep learning

Clustering, Data visualization

Incorrect