Question 1

What is data science?

Accepted Answer

The study of data

Answer

The study of data and science

Answer

The study of science

Answer

The study of science and technology

Question 2

What is a dataset?

Accepted Answer

A collection of data

Answer

A collection of science and technology

Answer

A collection of technology

Answer

A collection of science

Question 3

What is machine learning?

Accepted Answer

The study of algorithms and statistical models

Answer

The study of software

Answer

The study of engineering

Answer

The study of hardware

Question 4

What is predictive analytics?

Accepted Answer

The practice of using data, statistical algorithms and machine learning techniques

Answer

The practice of analyzing data

Answer

The practice of writing code

Answer

The practice of predicting the future

Question 5

What is a regression analysis?

Accepted Answer

The process of estimating the relationships between variables

Answer

The process of building a machine learning model

Answer

The process of estimating the relationships between science and technology

Answer

The process of analyzing data

Question 6

What is clustering?

Accepted Answer

The process of grouping data points together

Answer

The process of analyzing data points

Answer

The process of separating data points

Answer

The process of building a machine learning model

Question 7

What is a decision tree?

Accepted Answer

A tree-shaped diagram used to determine a course of action

Answer

A tree-shaped diagram used to predict the future

Answer

A tree-shaped diagram used to represent data

Answer

A tree-shaped diagram used to analyze data

Question 8

What is logistic regression?

Accepted Answer

A statistical method for analyzing a dataset in which there are one or more independent variables that determine an outcome

Answer

A statistical method for analyzing data

Answer

A statistical method for analyzing science and technology

Answer

A statistical method for analyzing software

Question 9

What is feature selection?

Accepted Answer

The process of selecting a subset of relevant features for use in model construction

Answer

The process of analyzing data

Answer

The process of selecting science and technology

Answer

The process of selecting software

Question 10

What is overfitting?

Accepted Answer

When a model is trained too well on the training data and does not generalize well to new data

Answer

When a model is not trained well on the training data

Answer

When a model is not calibrated well on the validation data

Answer

When a model is not tested well on the test data

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