A revision quiz covering core statistical concepts including measures of central tendency, dispersion, sampling, and graphical representations. Test your…
10 questions • Zestly
• Which of the following statements correctly describe properties of the mean and median?
• In a study, a researcher asks every 10th person entering a library about their favorite genre. What type of sampling is this?
• A scatter graph shows points trending downwards from left to right. Which of the following describe this correlation?
• For a data set with 20 values, where is the median located in an ordered list?
• A histogram has class intervals: 0-10 (frequency 5), 10-20 (frequency 15), 20-40 (frequency 10). What is the frequency density of the 20-40…
• Which of the following are true regarding the interquartile range (IQR)?
• A box plot shows a median of 15, a lower quartile of 10, and an upper quartile of 25. What is the interquartile range?
• Which of the following are common sources of bias in sampling?
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