Error bars on bar charts in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the matplotlib.pyplot module as plt.

Matplotlib

import [1] as plt

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Anumpy

Bpandas

Cmatplotlib.pyplot

Dseaborn

Attempts:

3 left

💡 Hint

Common Mistakes

Importing the wrong module like numpy or pandas.

Forgetting to use 'as plt' alias.

We import matplotlib.pyplot as plt to create plots.

2fill in blank

medium

Complete the code to create a bar chart with error bars using plt.bar.

Matplotlib

plt.bar(x, height, yerr=[1])

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Ax

Berrors

Cheight

Dwidth

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the wrong variable like x or height to yerr.

Not passing any error values.

The yerr parameter takes the error values to show error bars.

3fill in blank

hard

Fix the error in the code to correctly display error bars on the bar chart.

Matplotlib

plt.bar(x, height, yerr=[1], capsize=5)
plt.show()

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Aerror

Berr

Cerror_bars

Derrors

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name that does not exist.

Typos in the error variable name.

The variable holding error values is named errors. Using the correct variable name fixes the error.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Matplotlib

{word: [1] for word in words if [2]

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Alen(word)

Blen(word) > 3

Cword

Dword > 3

Attempts:

3 left

💡 Hint

Common Mistakes

Using the word itself instead of its length as the value.

Incorrect condition syntax.

The dictionary maps each word to its length using len(word). The condition keeps words longer than 3 characters.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their counts only if count is greater than 0.

Matplotlib

{ [1]: [2] for [3], count in data.items() if count > 0 }

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Aword.upper()

Bcount

Cword

Dcount.upper()

Attempts:

3 left

💡 Hint

Common Mistakes

Using count.upper() which is invalid since count is a number.

Swapping keys and values.

The keys are uppercase words using word.upper(). The values are counts. The loop variable is word.