Question 1

What is data visualization?

Accepted Answer

Representation of data in graphical or pictorial form to make it easier to understand.

Answer

A process of cleaning data

Answer

A process of collecting data

Answer

A process of storing data

Question 2

What is the purpose of data visualization?

Accepted Answer

To communicate insights and patterns in data to others.

Answer

To store large amounts of data

Answer

To create new data

Answer

To analyze data

Question 3

Which of the following is NOT a type of data visualization?

Accepted Answer

Alphabetical List

Answer

Bar Chart

Answer

Line Graph

Answer

Pie Chart

Question 4

What is a scatter plot used for?

Accepted Answer

To show the relationship between two variables.

Answer

To show the distribution of a single variable

Answer

To show a comparison between two values

Answer

To show trends over time

Question 5

What is a heat map used for?

Accepted Answer

To show the density of data in two dimensions using color.

Answer

To show a comparison between two values

Answer

To show trends over time

Answer

To show the relationship between two variables

Question 6

What is the difference between a histogram and a bar chart?

Accepted Answer

Histograms show the distribution of a single variable, while bar charts show comparisons between multiple variables.

Answer

Histograms are used for categorical data, while bar charts are used for numerical data.

Answer

Histograms show the distribution of multiple variables, while bar charts show comparisons between single variables.

Answer

Histograms and bar charts are the same thing.

Question 7

What is a time series?

Accepted Answer

A set of data points collected over time.

Answer

A set of data points that include missing values.

Answer

A set of data points collected at a single point in time.

Answer

A set of data points collected from multiple sources.

Question 8

What is an interactive dashboard?

Accepted Answer

A web-based tool that displays data in real-time and allows users to interact with it.

Answer

A type of spreadsheet software.

Answer

A physical display board with data visualizations.

Answer

A software program used to create graphical displays of data.

Question 9

What is data wrangling?

Accepted Answer

The process of cleaning and transforming raw data into a format that is easier to analyze.

Answer

The process of analyzing data.

Answer

The process of collecting data.

Answer

The process of visualizing data.

Question 10

What is a data story?

Accepted Answer

A narrative that uses data visualizations to communicate insights or findings.

Answer

A fictional story about data.

Answer

A list of facts and figures about a particular subject.

Answer

An opinion piece about data privacy.

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