Measures of central tendency describe the center of a data distribution, commonly used in quality data analysis to summarize performance metrics.
Option A (Standard deviation and variance): These are measures of dispersion, not central tendency, as they describe data spread.
Option B (Standard deviation and median): Median is a measure of central tendency, but standard deviation is not.
Option C (Mode and variance): Mode is a measure of central tendency, but variance is not.
Option D (Mode and median): This is the correct answer. The NAHQ CPHQ study guide states, “Measures of central tendency include the mean, median, and mode, representing the average, middle value, and most frequent value, respectively” (Domain 2).
CPHQ Objective Reference: Domain 2: Health Data Analytics, Objective 2.1, “Understand statistical measures for data analysis,” includes central tendency measures. The NAHQ study guide notes, “Mean, median, and mode are essential for summarizing quality data” (Domain 2).
Rationale: Mode and median, along with mean, are standard measures of central tendency, as per CPHQ’s statistical analysis principles.
[Reference: NAHQ CPHQ Study Guide, Domain 2: Health Data Analytics, Objective 2.1., , , ]
