Practice Cumulative Frequencies (1.11.1.2) - Data

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6 sample questions

Question 1.
Define data in your own words.
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What do you see on TV or read in reports?
Question 2.
What is cumulative frequency?
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Think of it as a running total of counts.
3Question 3.
What is the primary purpose of cumulative frequency?
- To find the mean
- To calculate total observations
- To analyze data distribution
- To collect raw data
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Think about data use cases.
4Question 4.
True or False: Secondary data is always more reliable than primary data.
- True
- False
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Consider the difference between firsthand research and literature reviews.
Question 5.
A class of 40 students got scores ranging from 0 to 100 in their exams. If their scores are distributed in a table, calculate the cumulative frequency from the simple frequencies provided.
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Start with the first frequency.
Question 6.
Given a dataset of ages from different age groups, represent it graphically in both a frequency polygon and an ogive.
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Ensure to label your axes correctly.

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