This quiz will test your knowledge of key concepts in data visualization and data science. You will be asked questions about visualization best practices, different chart types, and commonly used Python libraries like Matplotlib, Seaborn and Plotly.

The number of attempts remaining is 5

1 / 30

Did you subscribe to our YouTube channel Codancis ?

A) Don't use YouTube

B) Already subscribed

C) Yes

D) No

2 / 30

Which Plotly method updates and renders a figure on the screen?

A) render()

B) fig.show()

C) update()

D) fig.update_layout()

3 / 30

Which attribute sets the font properties in Plotly layout?

A) font_family

B) set_font

C) layout.font

D) font_props

4 / 30

How do you add a legend to a Plotly figure?

A) legend=True

B) add_legend()

C) layout.legend.showlegend=True

D) show_legend()

5 / 30

What is a pivot table in data visualization?

A) A chart type to visualize time series data

B) A map to overlay data on geographic locations

C) A deep learning model for processing images

D) A tool for rearranging and summarizing data

6 / 30

Which attribute sets axis line properties in Plotly layout?

A) axis_lines

B) show_axis_lines

C) layout.xaxis.showline/layout.yaxis.showline

D) set_axis_lines

7 / 30

How do you display a Plotly figure inline in a Jupyter notebook?

A) plot(fig)- Displays inline

B) fig.show() - Displays inline by default in Jupyter

C) fig.display()

D) show_inline(fig)

8 / 30

Which seaborn function is used to draw a line plot?

A) sns.draw_line()

B) sns.lines()

C) sns.lineplot()

D) sns.plot_line()

9 / 30

How do you change the number of bins in a Matplotlib histogram?

A) bins=10

B) set_bins(10)

C) n_bins=10

D) plt.hist(bins=10)

10 / 30

Which seaborn function is used to draw a bar plot?

A) sns.bar()

B) sns.draw_bar()

C) sns.plot_bar()

D) sns.barplot()

11 / 30

What type of chart is best for visualizing categorical variables?

A) Line chart

B) Pie chart

C) Bar chart

D) Scatter plot

12 / 30

What type of chart is best for visualizing hierarchical or multi-level categorical data?

A) Scatter plot

B) Pie chart

C) Bar chart

D) Tree map

13 / 30

How do you add a legend to a Matplotlib plot?

A) add_legend()

B) plt.add_legend()

C) legend()

D) plt.legend()

14 / 30

What type of chart is best for comparing groups?

A) Bar chart

B) Line chart

C) Pie chart

D) Scatter plot

15 / 30

What type of object is returned when a Plotly figure is created?

A) GraphObject

B) Plot

C) Figure

D) Layout

16 / 30

Which function is used to create a scatter plot in Plotly?

A) plotly.graph_objects.Scatter()

B) go.Scatter()

C) scatter_plot()

D) plot.scatter()

17 / 30

Which method exports a Plotly figure to an image file?

A) fig.save('fig.png')

B) fig.export('fig.png')

C) fig.to_file('fig.png')

D) fig.write_image('fig.png')

18 / 30

Which keyword argument controls marker size in Plotly scatter plots?

A) size

B) marker_size

C) point_size

D) s

19 / 30

How would you save a plot as an image file in matplotlib?

A) plt.to_file('filename.png')

B) plt.savefig('filename.png')

C) plt.export('filename.png')

D) plt.save('filename.png')

20 / 30

How do you save a figure without displaying it in Matplotlib?

A) plt.to_file('figure.png')

B) plt.export('figure.png')

C) plt.savefig('figure.png')

D) plt.save('figure.png')

21 / 30

What type of plot is used for visualizing relationships between two continuous variables?

A) Line chart

B) Scatter plot

C) Bar chart

D) Pie chart

22 / 30

Which function in pandas is used to plot data directly from a DataFrame?

A) df.graph()

B) df.visualize()

C) df.draw()

D) df.plot()

23 / 30

What is whitespace (white space) in data visualization?

A) The margins around the page

B) The background color of the plot

C) The spacing between text characters

D) Empty areas of the page or slide that separate individual graphics or groups of information

24 / 30

How do you add a grid to a matplotlib plot?

A) plt.gridlines(True)

B) plt.set_grid(True)

C) plt.grid(True)

D) plt.add_grid(True)

25 / 30

Which parameter sets the linewidth in Matplotlib?

A) width_line

B) linewidth

C) line_width

D) set_width()

26 / 30

What type of chart is best for showing data trends over time?

A) Pie chart

B) Bar chart

C) Line chart

D) Scatter plot

27 / 30

What type of chart is best for showing proportions within a whole?

A) Pie chart

B) Line chart

C) Scatter plot

D) Bar chart

28 / 30

What seaborn function is used to draw a point plot?

A) sns.pointplot()

B) sns.plot_points()

C) sns.draw_points()

D) sns.points()

29 / 30

What principle states that graphs should maximizeink ratio (data-to-ink ratio)?

A) Tufte's data-ink maximization principle

B) Lie Factor principle

C) Chartjunk principle

D) Visual hierarchy principle

30 / 30

What is overplotting in data visualization?

A) When data points are plotted on top of each other

B) When there are too many colors in a plot

C) When the legend is missing

D) When the x and y axes are not labeled

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The average score is 35%

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