Practice Histogram (9.7.3) - Data Analysis using Python - CBSE 12 AI (Artificial Intelligence)

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a histogram?
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Think about how data is grouped.
Question 2.
Why are bins used in a histogram?
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Consider how many data points fall into each category.
3Question 3.
What does a histogram represent?
- A line graph of data points
- A visual representation of data frequency
- A table of numerical values
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Think about what graphs show.
4Question 4.
True or False: Increasing the number of bins always provides a clearer picture in a histogram.
- True
- False
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Consider how detail can become clutter.
Question 5.
You have the following marks of students: [65, 72, 76, 85, 55, 89, 90, 90, 72, 78]. What would you do to create a histogram for this dataset? Describe how you'd determine the number of bins to use.
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Consider the total number of data points you have.
Question 6.
After creating a histogram, you notice uneven representation among the bins. What adjustments can you make to improve the clarity of the histogram?
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Reflect on how the visual can become noisy with many bins.

5 more questions in this section. Enroll free to practise them all.