[Solved] What will this code display?import matplotlib.pyplot as plt before = [2, 4, 6] after = [3, 5, 7] labels = ['A', 'B', 'C'] plt.bar(labels, before, color='blue') plt.... | Matplotlib

Matplotlib - Real-World Visualization Patterns

What will this code display?

import matplotlib.pyplot as plt
before = [2, 4, 6]
after = [3, 5, 7]
labels = ['A', 'B', 'C']
plt.bar(labels, before, color='blue')
plt.bar(labels, after, color='red', alpha=0.5)
plt.show()

ABlue and red bars side-by-side without overlap

BRed bars overlay blue bars with transparency

COnly red bars are visible

DError due to overlapping bars

Step-by-Step Solution

Solution:

Step 1: Understand bar plotting with same x positions
Bars with same labels overlap; alpha=0.5 makes red bars semi-transparent.
Step 2: Visualize overlay effect
Red bars overlay blue bars with partial transparency, both visible.
Final Answer:
Red bars overlay blue bars with transparency -> Option B
Quick Check:
Same x + alpha < 1 = overlay with transparency [OK]

Quick Trick: Use alpha to see overlapping bars clearly [OK]

Common Mistakes:

Expecting side-by-side bars without shifting x
Thinking only one color shows
Assuming error occurs

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More Matplotlib Quizzes

What will this code display?

Step 1: Understand bar plotting with same x positions

Step 2: Visualize overlay effect

Final Answer:

Quick Check:

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