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

Which Plotly class is used to create bar charts?

A) plotly.graph_objects.Bar()

B) bar_plot()

C) go.Bar()

D) BarChart()

2 / 30

What type of chart is best for visualizing categorical variables?

A) Line chart

B) Pie chart

C) Bar chart

D) Scatter plot

3 / 30

What type of chart is best for comparing groups?

A) Pie chart

B) Bar chart

C) Line chart

D) Scatter plot

4 / 30

What type of visualization shows relationships between data clusters?

A) Scatter plot matrix

B) Tree map

C) Heatmap

D) Choropleth map

5 / 30

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

A) plt.scatter_plot()

B) plt.plot_scatter()

C) plt.scatter()

D) plt.draw_scatter()

6 / 30

Which color palette is used by default in seaborn plots?

A) predefined

B) plt.colors()

C) 'muted'

D) default

7 / 30

Which function is used to add subplots in Matplotlib?

A) plt.add_subplot()

B) plt.subplot()

C) plt.create_subplot()

D) plt.subplots()

8 / 30

Did you subscribe to our YouTube channel Codancis ?

A) Don't use YouTube

B) No

C) Yes

D) Already subscribed

9 / 30

How do you set the color of bars in a seaborn barplot?

A) set_color('blue')

B) bar_color='blue'

C) color='blue'

D) color_bar='blue'

10 / 30

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

A) Bar chart

B) Pie chart

C) Scatter plot

D) Tree map

11 / 30

Which parameter sets the linewidth in Matplotlib?

A) line_width

B) width_line

C) linewidth

D) set_width()

12 / 30

Which layout attribute sets the y-axis title?

A) yaxis.title

B) y_label

C) set_ytitle

D) ytitle

13 / 30

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

A) fig.update_layout()

B) render()

C) fig.show()

D) update()

14 / 30

Which function in seaborn is used to draw a pair plot?

A) sns.pair()

B) sns.pairplot()

C) sns.draw_pair()

D) sns.plot_pair()

15 / 30

What is overplotting in data visualization?

A) When the legend is missing

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

C) When the x and y axes are not labeled

D) When there are too many colors in a plot

16 / 30

Which seaborn function is used to draw a line plot?

A) sns.plot_line()

B) sns.lines()

C) sns.lineplot()

D) sns.draw_line()

17 / 30

Which parameter controls the legend location in matplotlib?

A) legend_loc

B) loc

C) location

D) legendposition

18 / 30

Which function in matplotlib is used to create a new figure?

A) plt.new()

B) plt.graph()

C) plt.figure()

D) plt.create()

19 / 30

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

A) scatter_plot()

B) go.Scatter()

C) plot.scatter()

D) plotly.graph_objects.Scatter()

20 / 30

What is the primary purpose of data visualization?

A) To make data easier to understand and interpret

B) To hide information

C) To create databases

D) To make data look complex

21 / 30

How do you save a Plotly figure as HTML?

A) fig.to_html('fig.html')

B) fig.save_as_html('fig.html')

C) export_html('fig.html')

D) fig.write_html('fig.html')

22 / 30

What is the purpose of a heatmap in data visualization?

A) To plot time series data

B) To visualize data density or intensity across a 2D space

C) To draw 3D plots

D) To create interactive plots

23 / 30

Which layout attribute sets grid line properties?

A) xaxis_grid

B) set_grid

C) layout.grid

D) gridlines

24 / 30

What library is used in Python for interactive web-based data visualization?

A) Matplotlib

B) Seaborn

C) Plotly

D) Bokeh

25 / 30

Which attribute sets axis line properties in Plotly layout?

A) axis_lines

B) layout.xaxis.showline/layout.yaxis.showline

C) show_axis_lines

D) set_axis_lines

26 / 30

Which library in Python is primarily used for plotting data?

A) matplotlib

B) scipy

C) pandas

D) numpy

27 / 30

What seaborn function is used to draw a point plot?

A) sns.draw_points()

B) sns.plot_points()

C) sns.points()

D) sns.pointplot()

28 / 30

How do you set the size of a figure in matplotlib?

A) plt.size(width height)

B) plt.figure(figsize=(width height))

C) plt.resize(width height)

D) plt.set_size(width height)

29 / 30

Which parameter controls the size of markers in a matplotlib scatter plot?

A) plot_size

B) marker_size

C) size

D) s

30 / 30

Which keyword argument controls marker size in Plotly scatter plots?

A) s

B) point_size

C) marker_size

D) size

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