9. A study is conducted to determine the most frequent blood pressure reading among patients who consumed more than 10 alcoholic beverages in a week. Which numerical measure is appropriate?
Answer: A
Mode is the appropriate numerical measure.
The mode is the most frequent value in a dataset, making it ideal for identifying the most common blood pressure reading among patients who consumed more than 10 alcoholic beverages in a week.
A) Mode
The mode is the correct choice because it specifically identifies the value that appears most frequently in a given set of data. In this study, the goal is to determine the most frequent blood pressure reading, which is precisely what the mode provides.
B) Median
The median refers to the middle value in a dataset when arranged in ascending order. While it offers insight into the central tendency of the data, it does not indicate which blood pressure reading occurs most frequently, making it less suitable for this specific study.
C) Correlation coefficient
The correlation coefficient measures the strength and direction of the relationship between two variables. In this context, it does not apply as the study is focused on identifying a single measure of blood pressure, not examining relationships between variables.
D) Conditional percentages
Conditional percentages compare proportions within specific categories. However, this measure does not provide information about the most frequent blood pressure reading, thus failing to address the primary objective of the study.
Conclusion
The mode is definitively the right answer as it directly fulfills the requirement to identify the most frequent blood pressure reading in the study. All other options either address different statistical concepts or do not provide the necessary information concerning frequency, which is the core focus of the question.