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Computer Chapter 4 : Topic 2.7
Summary Statistics
1 / 15
A student says, “Most students scored between 60 and 80 marks, showing moderate performance.” This statement is based on:
Reasoning: Summary statistics are used to describe and interpret data patterns.
2 / 15
Which summary statistic is most appropriate to describe the “average performance” of a class?
Reasoning: Mean represents the average value of a dataset.
3 / 15
A researcher reports that “the highest and lowest values show a wide gap in student scores.” Which statistic is being used?
Reasoning: Range measures the difference between maximum and minimum values.
4 / 15
A teacher finds that most students scored exactly 75 marks. This observation refers to:
Reasoning: Mode is the most frequently occurring value.
5 / 15
Which statement best describes the purpose of summary statistics in data analysis?
Reasoning: Summary statistics help simplify and explain data.
6 / 15
A dataset is collected using surveys from students about study habits. This method represents:
Reasoning: Surveys conducted directly are primary data collection methods.
7 / 15
Which statement correctly describes how summary statistics help in decision-making?
Reasoning: Summary statistics help interpret data for decision-making.
8 / 15
A dataset shows a few extremely high values compared to others. Which term best describes this situation?
Reasoning: Outliers are values far from the rest of the data.
9 / 15
When describing data collection methodology, which factor is most important?
Reasoning: Methodology focuses on how and where data is collected.
10 / 15
A student writes, “Data was collected through interviews of 100 people.” This statement refers to:
Reasoning: Interviews are a primary method of data collection.
11 / 15
Which of the following is the BEST way to describe how data will be used in a project?
Reasoning: Data is used to extract insights through analysis.
12 / 15
A dataset has values: 10, 20, 30, 40, 50. The mean is used to:
Reasoning: Mean calculates the average of all values.
13 / 15
Which statement best describes how data storage supports data analysis?
Reasoning: Proper storage allows efficient retrieval and analysis.
14 / 15
A researcher uses tables, charts, and statistical summaries to explain findings. This process is called:
Reasoning: Summary statistics and visuals are used to interpret data.
15 / 15
Why is it important to choose a proper data collection method before analysis?
Reasoning: Proper collection ensures reliable and meaningful results.
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