1. Question 1

A scatter plot displays values for two variables.

✅ True
❌ False

Explanation:
Scatter plots map x vs y to visualize relationships between two variables.

2. Question 2

Which Matplotlib module allows quick plotting?

❌ Folium
✅ Pyplot
❌ Numpy
❌ Plotly

Explanation:
matplotlib.pyplot is the main interface for fast plotting.

3. Question 3

A pie chart is a circular graphic divided into segments.

❌ False
✅ True

Explanation:
Pie charts show category proportions.

4. Question 4

A box plot has five key statistical measures.

❌ False
✅ True

Explanation:
Boxplots show min, Q1, median, Q3, max (+ outliers).

5. Question 5

Area plots are similar to:

❌ Area
❌ Bar
❌ Box
✅ Line

Explanation:
Area plots are essentially filled line plots.

6. Question 6

Letters in box plot represent:

❌ Mean… (incorrect)
✅ A = Median, B = Third Quartile, C = First Quartile, D = Inter Quartile Range, E = Minimum, and F = Outliers
❌ Median + mean mix (incorrect)
❌ Mean-based interpretation (incorrect)

Explanation:
A box plot highlights quartiles, IQR, whiskers, and outliers.

7. Question 7

Function + parameter for a boxplot?

❌ plot with type
❌ plot with kind=”boxplot”
❌ boxplot with type=”plot”
✅ Function = plot, Parameter = kind with value = “box”

Explanation:
Using pandas plotting:
df.plot(kind="box") generates a box plot.

8. Question 8

First step in creating a histogram?

✅ Import matplotlib as mpl and its scripting interface as plt.
❌ Other wrong combinations

Explanation:
Usually:

9. Question 9

Process of creating a scatter plot?

❌ Importing Matplotlib to visualize large data
❌ Importing datapoints alone
❌ Importing dataset library
✅ The process of creating a scatter plot involves importing Matplotlib to visualize a large set of data.

Explanation:
Scatter plots require Matplotlib for visualization.

10. Question 10

A bar chart is also known as a:

✅ Bar graph
❌ Bar plot
❌ Pyplot
❌ Histogram

Explanation:
“Bar graph” is the common alternate name.

🧾 SUMMARY TABLE

Q	Correct Answer	Key Concept
1	True	Scatter plot basics
2	Pyplot	Matplotlib interface
3	True	Pie chart definition
4	True	Box plot statistics
5	Line	Area vs line plot
6	A=Median, B=Q3, C=Q1, D=IQR, E=Min, F=Outliers	Box plot anatomy
7	plot(kind=”box”)	Boxplot creation
8	Import Matplotlib & Pyplot	Histogram setup
9	Import Matplotlib to visualize	Scatter plot process
10	Bar graph	Bar chart terminology

Graded Quiz: Basic and Specialized Visualization Tools :Data Visualization with Python (IBM Data Analyst Professional Certificate) Answers 2025