Скачать или смотреть 3️⃣4️⃣🐼 Python Pandas Quiz | 📊 Data Science Practice

Welcome to this Python quiz for beginners!
In this video, you’ll test your Python programming skills with 10 multiple choice questions (MCQ).
This quiz is perfect for beginners and anyone who wants to practice Python basics and core concepts.
👉 Don’t forget to pause the video and try to answer each question yourself.
Good luck and happy coding!

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📌 Python Bar Chart Example — Code Breakdown

x = ['A', 'B', 'C']
y = [1, 10, 3]

plt.bar(x, y)
plt.show()

✅ Step-by-Step Explanation

1️⃣ x = ['A', 'B', 'C']
This line creates a Python list called x.
It contains three category labels: 'A', 'B', and 'C'.
These will appear on the X-axis as labels for each bar.

2️⃣ y = [1, 10, 3]
This line creates another list called y.
It contains the numerical values that determine the height of each bar:

A → height 1
B → height 10
C → height 3

3️⃣ plt.bar(x, y)
plt refers to matplotlib.pyplot — a powerful Python plotting library.
plt.bar() is the function that draws a vertical bar chart:

The first argument x is the list of categories (bar labels).
The second argument y is the list of values (bar heights).

So:

The first bar is labeled A and is 1 unit tall.
The second bar is labeled B and is 10 units tall.
The third bar is labeled C and is 3 units tall.

4️⃣ plt.show()
This line displays the chart in a window (or inline if using a Jupyter Notebook).
Without plt.show(), the chart won’t appear.
🔍 What This Code Does

This simple code snippet plots a bar chart with three bars.
Each bar represents a category (A, B, C) with its corresponding height (1, 10, 3).
⚡️ What You Can Try Next

Add a title:
plt.title("My Bar Chart")
Label the axes:
plt.xlabel("Category")
plt.ylabel("Value")
Save the chart as an image:

plt.savefig("bar_chart.png")

✅ Matplotlib is great for creating visualizations in Python — perfect for data analysis, science projects, and more!

Are you ready to test your Python knowledge?
This Python quiz challenge includes practice questions and answers to help you prepare for coding interviews or exams.
Watch till the end, check your answers, and see how many you get right!
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