Question Bank: Understanding Data

What is data primarily defined as?

What best describes structured data?

What process is used by governments to gather demographic data?

Which of the following is an example of unstructured data?

Which of the following is NOT an example of data?

What is the main purpose of data collection?

What can large amounts of processed data reveal?

In what form can sales data be collected in a grocery store?

Why is data processing done using computers preferred over manual methods?

Which term refers to data about data?

Which of the following statements about data is FALSE?

Which of the following is a method for collecting data?

In which scenario would data analysis be crucial?

What role does the census play in data collection?

What is the singular form of 'data'?

Which format is known for allowing easy data entry and storage in a spreadsheet?

Which type of data includes images, audio, and video?

When is data considered reliable?

How do banks utilize data?

Why is automated data collection often used in modern systems?

What role does ICT play in data generation?

Which type of data collection is best suited for assessing product preferences?

Which of the following describes electronic data storage?

In data processing, what follows data collection?

Why is summarisation important in data analysis?

What is a common trap when collecting data?

What type of data is often gathered by sensors?

What is the role of statistical techniques in data processing?

How can metadata improve data utility?

What is the primary purpose of data processing?

Which of the following statements about data storage is true?

What is the difference between structured and unstructured data?

Which statistical measure is best to find the average salary of employees in a company?

If you want to find the most frequently occurring item in a dataset, which statistical term should you use?

During data processing, what is the step that follows data collection?

What is the result of subtracting the average from each data point called?

Which device is NOT typically used for data storage?

What could be a result of poor data processing techniques?

What does the 'range' of a dataset represent?

Which of the following is NOT a step in the data processing cycle?

Which statistic would you use to summarize test scores of students where you need to avoid the influence of extreme outliers?

In data collection, what is a common method to ensure data reliability?

What statistical measure indicates how data points deviate from the mean?

When processing data, if you analyze past patient records to improve future medical services, which type of data analysis are you conducting?

What is the mean of the following data set: [10, 20, 30, 40, 50]?

In a data set, if the numbers are 5, 17, 20, 8, and 3 sorted in ascending order, what is the median?

Which of the following measures of central tendency is sensitive to outliers?

For a data set with values 4, 4, 5, 6, and 6, what is the mode?

What is the purpose of summarisation in data processing?

Which measure would be best to use if a data set contains outliers?

If you want to assess the typical salary of employees but some salaries are extremely high (outliers), which statistic should you report?

In a team's performance data, if 95% of scores are between 50 and 60, but one score is 99, what impact does the 99 have on the mean?

Which of the following is not a measure of central tendency?

If a data set has an even number of observations, how is the median calculated?

When is it most appropriate to use mode as a measure of central tendency?

What does a high variance in a data set indicate?

In which situation would you most likely use graphical methods to summarize data?

Which measure of central tendency is best to represent extreme income data?

What is the range in a data set with values 10, 20, 15, 30, and 5?

When evaluating data, what is a common reason to prefer the median over the mean?

Which of the following statements is true about the mode?