Practice Summary (7.8) - Statistics - CBSE 9 AI (Artificial Intelligence)

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11 questions

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4 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
5 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define qualitative data with an example.
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Think about labels or categories.
Question 2.
What is primary data?
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Consider who collected the data.
3Question 3.
What type of data includes categories or labels?
- Qualitative
- Quantitative
- Both
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Think about data types.
4Question 4.
True or False: Mean, median, and mode are all measures of central tendency.
- True
- False
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Recall the data summary techniques.
Question 5.
Analyze a dataset of school exam scores: [45, 70, 55, 80, 50, 95]. Calculate the mean, median, and mode.
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Calculate the mean first, then sort the data for the median.
Question 6.
Create a pie chart representation of voter preferences: [30% for candidate A, 45% for candidate B, 25% for candidate C]. Explain what insights could be drawn.
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Visualize proportions clearly for effective communication.

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